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Socket Head Cap Screw


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Item Specifics

Federal Supply Class (FSC)
National Item ID Number (NIIN)
Thread Class
Thread Direction
Right-hand AAJF
Thread Length
0.158 inches minimum and 0.250 inches maximum AASA
Fastener Length
0.220 inches minimum and 0.250 inches maximum AASB
Head Style
Flat chamfer AASK
Head Diameter
0.218 inches minimum and 0.226 inches maximum AASL
Head Height
0.134 inches minimum and 0.138 inches maximum AASU
Internal Drive Style
Hexagon ABQZ
Nominal Thread Diameter
0.138 inches AHYM
Width Across Flats
0.109 inches minimum and 0.111 inches maximum ASDB
Thread Quantity Per Inch
Minimum Tensile Strength
80000 pounds per square inch CQBC
Hardness Rating
80.0 rockwell b minimum overall CQFM
Minimum Yield Strength
30000 pounds per square inch CQHQ
Steel comp 302 overall or steel comp 303 overall or steel comp 304 overall or steel comp 305 overall or steel comp 316 overall MATT
Material Document And Classification
66 fed std all material responses overall MDCL
Surface Treatment
Passivate overall SFTT
Surface Treatment Document And Classification
Qq-p-35 fed spec single treatment response overall STDC
Thread Series Designator
Nondefinitive Spec/std Data
6 type ZZZT

Item Identification | Screws

5305-00-051-6751, An externally threaded fastener whose threaded portion is of one nominal diameter. the head has an internal socket or multiple spline for use with an inserted driver. a locking feature may be incorporated in the design of the head or threads. excludes items with bevel (conical) heads. see bolt, internal wrenching. excludes screw, shoulder; and screw, machine.

Supply Class (FSC)NSN AssignmentNIINItem Name Code (INC)
5305 Jan 01, 1963 000516751 16282 (Screw, Cap, Socket Head)

End Item Applications NSN 5305-00-051-6751 end item applications/platforms

  • Interface Device Accessory Set  
  • Air Conditioner  
  • Sof ( Ac-130h Aircraft Mc-130h   (EIC ATF)
  • Amplifier Subassembly  
  • Spectrum Analyzer  
  • Antenna  
  • Antenna Assembly  
  • Antenna Control Group  
  • Fire Contro Antenna  
  • Collimation Antenna-mast Group  
  • Antenna Pedestal Subassembly  
  • Antenna-transceiver  
  • Special Purpose Cable Assembly Electrical  
  • Television Camera Subassembly  
  • Low Speed Cardpunch  
  • Close In Weapon System (ciws-phalanx)   (EIC A1N)
  • Combiner Mechanism  
  • Computer Set  
  • Test Controller Electronic System  
  • Frequency Converter Electronic  
  • Subassembly Countermeasure Set  
  • Countermeasures Set  
  • Data Retrival Unit  
  • Memory Unit Disk  
  • Flight Information Display Unit  
  • Distribution Box  
  • Lift Dolly Set Transportable Shelter  
  • Electronic Components Assembly  
  • Aircraft Engine F-108 (cfm-56   (EIC BAF)
  • Vaneaxial Fan  
  • Fire Direction Cent  
  • Frequency Converter-transmitter  
  • Main Fuel Control Turbine Engine  
  • Accessory Drive Gearbox Turbine Engine  
  • Signal Generator  
  • Gimbal And Support  
  • Displacement Gyroscope  
  • Printed Circuit Board Holder  
  • Gearbox Housing Turbine Engine  
  • Petroleum Laboratory Semitrailer Mounted  
  • Magnetic Tape Recor  
  • Posi Master Station  
  • Multiple Scale Meter  
  • Telescop Microscope  
  • Ph Microwave Source  
  • Air-to-air Missile Sparrow (aim-7)   (EIC BDN)
  • All-weather Anti-ship Missile Harpoon (agm-84)   (EIC BEN)
  • Multimeter  
  • Multiplexer-demulti  
  • Microwav Multiplier  
  • Oscilloscope  
  • Control Panel Electrical-electronic Equipment  
  • Indicator Panel  
  • Patching Panel Programming  
  • Power Distribution Panel  
  • Lo Paper Tape Punch  
  • Antenna Pedestal  
  • Photographic Film Plotting Table  
  • Plugboard Assembly  
  • Tip Plug  
  • Power Supply  
  • Radar Set Subassembly  
  • Radio Set  
  • Punched Card Reader  
  • Receiver Group  
  • Radio Receiver-transmitter  
  • Signal Data Recorder-reproducer Set  
  • Voltage Regulator Assembly  
  • Current Regulator  
  • Voltage Regulator  
  • Generator Rotor  
  • Satellite Communica  
  • Antenna Pha Shifter  
  • Radar Signal Simulator  
  • An/sqq-28(v) Sonar Signal Processing Sys   (EIC BSN)
  • B-1 Aircraft Support Equipment   (EIC ACF)
  • B-52 Aircraft Support Equipment   (EIC ABF)
  • Azimuth Surveying Instrument  
  • Antenna Unit Switch  
  • Electro-optical Target Designator Set  
  • Telephone Set  
  • Teleprinter  
  • Electrographic Teleprinter  
  • Teletypewriter Set  
  • Teletypewriter Subassembly  
  • Terminal Communicat  
  • Test Program Set  
  • Electronic Systems Test Set  
  • Guided Missile System Test Set  
  • Radar Test Set  
  • Optical Instruments Test Set Subassembly  
  • Physical Properties Equipment Test Set Subassembly  
  • Electr Test Station  
  • Test Station Group  
  • Guided Missile Test Station  
  • En Throttle Control  
  • Mk 46 Torpedo Systems   (EIC BMN)
  • Mk 50 Torpedo Systems   (EIC BNN)
  • Current Transformer  
  • Laser Transmitter  
  • Transmitter Subassembly  
  • Dual Valve Assembly  
  • Safety Relief Valve  
  • Ignition Coil Vibrator  
  • Stereoscopic Roll Film Viewer Photographic Interpretation  

Item Identification Guide

NSN Reference Drawing

Cap Screw Socket Heads Cross Reference

Part Number CAGE Variation
H667160604 Cage Code D9182 Cross Ref. Part
NAS1352C06-4 Cage Code D9182 Cross Ref. Part
NAS608C632-4 Cage Code D9182 Cross Ref. Part
FF-S-86 Cage Code 81348 Non-Difinitive Specification
74455244016 Cage Code 89944 Cross Ref. Part
2301-0730 Cage Code 91816 Cross Ref. Part
0444-220 Cage Code D9182 Cross Ref. Part
100A900012 Cage Code D9182 Cross Ref. Part
309R378H01 Cage Code D9182 Cross Ref. Part
213039-368 Cage Code D9182 Cross Ref. Part
VA-97-0177-016 Cage Code K0668 Superseded, Discontinued, or Replaced
200162-4 Cage Code 02145 Superseded, Discontinued, or Replaced
418262-16 Cage Code 96214 Superseded, Discontinued, or Replaced
MS16995-16 Cage Code 80205 Original Part
1037-007 Cage Code 66503 Superseded, Discontinued, or Replaced
5116-6-2 Cage Code 50027 Superseded, Discontinued, or Replaced
FF-S-86E TY 1 Cage Code 81348 Superseded, Discontinued, or Replaced
92196A144 Cage Code 39428 Superseded, Discontinued, or Replaced
003-007868-016 Cage Code 26916 Superseded, Discontinued, or Replaced
MS16995-16 Cage Code 96906 Superseded, Discontinued, or Replaced
10057945 Cage Code A486G For Reference Only

National Motor Freight NMFC: A six position numeric code, which divides articles into groups or classes according to physical characteristics. The classification is based on truckloads vs. less than truckload.

Code Description Code Value Meaning
NMF Description NMFC 093486 Bolts, Nuts Or Screws, Noi (sub 3)
Universal Freight Code UFC 48950
Less than a truck load rating LTL W Rating variable
Water Commodity WCC 713 Metal hardware
Type of Cargo TCC Z No special type of cargo code applicable
Special Handling SHC 9 Other or no special handling required (sh)
Air Dimension Code ADC A Shipment is not a consolidation and does not exceed 84 inches in any dimension.
Air Commodity ACC B Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling ASH Array No special handling required.

Trade Control Compliance Schedule B Export Code: A ten position numeric code that identifies an item exported overseas. this unique identification code is assigned by the U.S. Census Bureau.

Schedule B Sch. B Description Demilitarization Classification ITAR Regulation
7318152000 Bolts and bolts and their nuts or washers exported in the same shipment Non-usml/non-ccli - no demil or dod tsc required. department of commerce may impose licensing requirements to certain destinations. (note 9). Unclassified Not ITAR Controlled

MOE / End Users Represents the subdivisions of a US governmental organization or an agency of the North Atlantic Treaty Organization (NATO), and other friendly governments and international organizations participating in the federal catalog program.

Country / Entity Name MOE
ZX Namsa (user) ZX
ZZ Department Of The Army ZZ
No MOE rules found for this NSN.

Material & Special Handling Item material and handling information

Code Description Value Meaning
HMIRS N Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Precious Metals Indicator A Item does not contain precious metal.
Criticality Code X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Repairability Z This is a nonreparable item. if condemned or economically unserviceable, then dispose at the level authorized replace the item.

Management Rec. / Rep. Code: Special program consumables

 CTL: T2200X-

Air Force

Fund SF – Stock fund applicable to items managed for the air force by the respective inventory control point.
Budget 9 – Air force decentrally managed
Material Management SX – Brac mmac for oc-alc
Price Validation V – The current standard price has been validated. - the item has been analyzed in conjunction with the zero overpricing program and is in the accepted price range. -the item was procured under open competition and under the competitive arena the price is considered fair and reasonable. -zop or standard price challenges are permissible but must be supported by adequate justification.

Air Force Management Code Definition

Fund A two position code that classifies an item into categories in terms of funding and budgeting.
Budget Identifies investment items to budget programs from which item is funded.
Material Management Identifies an item of supply to be managed by a specific activity manager.
Price Validation Indicates validity of the recorded unit price.


Stores Account 1 – Marine corps stock fund account item.
Combat Essentiality 2 – Non-critical repair part. repair parts or major components whose failure in an end item will not render the end item inoperati
Management Echelon B – All commodities
Material Identification B – Consumable repair parts
Operational Test
Physical Category

Marines Code Definition

Stores Account (SAC) Indicates the type of funds employed within the marine corps in supply support operations.
Combat Essentiality (CEC) Establishes if an item is essential to the operational readiness of a weapon system or the conduct of a military mission, or that a functional part contributes to the tactical and essential operations of an item component or assembly, and its failure would render the item inoperable or incapable of fulfilling its mission.
Management Echelon (MEC) Classifies items into categories by material and procurement echelon.
Material Identification (MIC) Identifies method of accounting, degree, and type of control to be maintained for the item and to identify material by specific purpose, type, or classification for the war reserve system.
Operational test (OTC) Indicates special procedures must be performed on an item of supply while under care-in-stores or as a part of the issue process.
Physical Category (PCC) Indicates category for picking, packing, and marking items for shipment.


Cognizance 9B – Naval inventory control point, mechanicsburg
Special Material
Requisition Restriction
Special Material Content

Navy Management Code Definition

Cognizance (COG) Identifies the inventory manager (IM) and inventory control point (ICP).
Special Material (SMIC) Categorizes material on the basis of requirements for source or quality control, technical design, or configuration control, procurement, stocking and issue control, special receipt, inspection, testing, storage, or handling
Req. Restriction (IRRC) Item requisition instructions.
Special Material (SMCC) Indicated that an item represents or contains peculiar material requiring special treatment, precautions, or management.


Accounting Requirements X – Expendable item. an item of army property coded with an arc of ``x'' in the amdf. expendable items require no formal accountability after issue from a stock record account. commercial and fabricated items similar to items coded ``x'' in the amdf are considered expendable items.
Material Category 1 T – Industrial supplies (dla/gsa items)
Material Category 2 2 – Stock fund secondary items
Material Category 3 2 – Nonreparable items (exclusive of insurance and provisioning items). this code will be used to identify items which are not reparable.
Material Category 4 & 5 00 – Dla/gsa-managed items that cannot be identified to a specific army weapons systems/end item

Army Management Code Definition

Accounting Requirements Accounting Requirements Code (ARC): a one position alpha code that indicates the accountability of an item of supply.
Material Category 1 Material category and inventory manager.
Material Category 2 Appropriation and budget activity account.
Material Category 3 Management inventory segment.
Material Category 4 & 5 Specific group / generic category.