4730-01-028-7976

Tube Coupling Nut Assembly email this page

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Reference images of this national stock number
Reference of NSN 4730-01-028-7976

Model or part number: 63551-56A

Pricing & Availability

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About this product
Furnished with two washers

pdf NSN 4730-01-028-7976 Datasheet

MRC:
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.AAJD
Thread Class:
2b
MRC:
The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.AAJF
Thread Direction:
Right-hand
MRC:
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.ABHP
Overall Length:
0.701 inches
MRC:
The length of a straight line which passes through the center of a circular figure or body,and terminates at the outside circumference.ABKV
Outside Diameter:
4.427 inches
MRC:
Designates the thread diameter and number of threads per specific measurement scale.ABUJ
Thread Size:
4.250-12
MRC:
The length of a straight line which passes through the center of the tube for which designed,and terminates at the outside circumference.ACSV
Tube Outside Diameter For Which Designed:
3.500 inches
MRC:
A designation distinguishing one group of screw thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.AJYP
Screw Thread Series Designator:
Un
MRC:
A measurement of the working pressure and the type of service for which rated.CDPG
Working Pressure And Service Type:
125.0 pounds per square inch jet fuel
MRC:
A measurement of the working temperature and the type of service for which rated.CDPH
Working Tempurature And Service Type:
65.0 degrees fahrenheit jet fuel and 160.0 degrees fahrenheit jet fuel
MRC:
The element,compound,or mixture of which an item is fabricated,excluding any surface treatment.MATL
Material:
Aluminum alloy
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Aluminum alloy
MRC:
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.SFTT
Surface Treatment:
Anodize
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.STYL
Style Designator:
Nut assembly
MRC:
Consists of plating,dip,and/or coating that cannot be wiped off.plating and/or coating is any chemical and/or metallic additive,electrochemical,or mild mechanical process which protects a surface.SURF
Surface Treatment:
Anodized, mil-a-8625
MRC:
--
NIIN:
010287976
MRC:
--
NATO Stock Number:
4730-01-028-7976
MRC:
--
Shelf Life:
N/A
MRC:
--
UOM:
--
MRC:
--
DEMIL:
No
FIIG:
--
FIIG:
T385-V
MRC:
--
INC:
32836
MRC:
--
IMM:
AX
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All Products Certified

Factory New, New Material, New Surplus, Overhauled, Serviceable, Repairable, and AS Removed / Used material will be accompanied by a Certificate of Conformance, and any other documents/trace when applicable. We have a 7 year record retention.

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Quality | ISO 9001:2015 + AS9120B

We are committed to quality and follow an AS9120 quality management system. AeroBase Group is HAZMAT certified and registered with DDTC, ITAR, and Aviation Suppliers Association (ASA). All products are 100% inspected.

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Shipping

Delivery of IN-STOCK orders ship same-day when order is placed before 2:00 PM EST.

Delivery dates for NON-STOCK items are estimates based on current backlog and are subject to confirmation at the time of order.

Formal Definition

Government issue definition of NSN 4730-01-028-7976

An item consisting of an internally threaded nut and an integral floating washer designed to be used with a gasket seal to connect beaded or swaged ferruled thin wall tubing to a coupling body, boss connection, or the like to form a flexible or rigid leakproof connection.

Packaging & Dimensions

MIL-STD codes: http://www.dla.mil/LandandMaritime/.../MILSTD2073Codes.aspx
Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.2000lbs
Item Weight:
--
Item Dim:
--
Container
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
LVL C
Container:
--
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q
LVL_C:
CUSH
MOP
CATEG.
PRES MAT
WRAP MAT
ICQ
THK
TOS
UCL
CUSH DUN:
XX
MOP:
33
PKG:
18ZZ
PRES MAT:
XX
WRAP MAT:
XX
ICQ:
AAA
THK:
X
TOS:
UCL:

Packaging Codes Definitions:

LVL A Code (LVL_A) Q

Packing shall be accomplished in accordance with table c.Ii for the packing level specified. closure, sealing and reinforcement shall be in accordance with applicable specification for shipping container.

LVL B Code (LVL_B) Q

Packing shall be accomplished in accordance with table c.Ii for the packing level specified. closure, sealing and reinforcement shall be in accordance with the appropriate shipping container specification.

Procedure Indicator Code (OPI) M

All packaging data is mandatory for compliance and no substitutions are permitted. fast packs should be included in this category.

Special Markings Code (SPC_MKG) 00

No special marking.

Method of Preservation (MOP) 33

Greaseproof-waterproof bag, sealed.

Freight

Universal / National freight and handling information
NMFC
Class
UFC
LTL
LCL
WCC
TCC
SHC
ADC
ACC
NMFC:
051400
NMF Description:
Pipe Fittings Aluminum
UFC:
29700
LTL:
77.5
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ADC:
A
ACC:
B

Freight Codes Definitions:

Cargo Type (TCC) Z

No special type of cargo code applicable.

Water Commodity (WCC) 576

Metal and metal products, nos, (less than 35 feet).

Air Commodity (ACC) B

Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater.

Air Dimensions (ADC) A

Shipment is not a consolidation and does not exceed 84 inches in any dimension.

Air Special Handling (SHC) 9

Other or no special handling required (sh)

Manufacturers

This NSN is registered to the following cage codes.
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