4820-00-529-4177

Safety Relief Valve email this page
ITAR Registered

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Reference images of this national stock number
Reference of NSN 4820-00-529-4177

Model or part number: MC1603-2801

Pricing & Availability

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Description

Velocity Fuse NSN 4820-00-529-4177.

pdf NSN 4820-00-529-4177 Datasheet

MRC:
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.AAJD
Thread Class:
3a 1st end
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 1st end
MRC:
Indicates the type of housing on the item that accommodates the stem packing or spring.ADSR
Bonnet Type:
Inside screw
MRC:
The means by which the bonnet is attached to the item.ADST
Bonnet Attachment Method:
Integral
MRC:
The means of closing the item when inlet pressure decreases.ADSU
Disk Loading Method:
Spring
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.AHNC
Connection Style:
Flared (tube) 1st end
MRC:
Indicates the type of connection/s/.AWLS
Connection Type:
Threaded external tube 1st end
MRC:
Those features,not otherwise specified,which may be required for proper functioning of the item.CBBL
Features Provided:
Valve stem lock shield and bonnet packing
MRC:
The number of threads on the item per linear inch measured on a line parallel to the thread axis.CMLP
Thready Qty Per Inch (tpi):
20 1st end
MRC:
The maximum pressure at which the item is rated for operation.CQGM
Maximum Operating Pressure:
3000.0 pounds per square inch single response
MRC:
A designation that is used for the purpose of general identification of the thread.CQJX
Thread Size:
0.437 inches 1st end
MRC:
The angle of the end surface upon which the mated surface seats.CQRB
Seat Angle:
37.0 degrees 1st end
MRC:
The predetermined pressure at which the item is calibrated to open.CSDC
Opening Pressure Setting:
2800.0 pounds per square inch
MRC:
The nominal length of a straight line which passes through the center of the accommodated tube,and terminates at the outside circumference.CWFD
Outside Diameter Tube Accommodated:
0.250 inches 1st end
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Aluminum alloy seat
MRC:
The type of media for which the item is designed.MEDA
Media For Which Designed:
Air single response
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:
Straight through w/baffle
MRC:
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.THSD
Thread Series Designator:
Unf 1st end
MRC:
--
NIIN:
005294177
MRC:
--
NATO Stock Number:
4820-00-529-4177
MRC:
--
Shelf Life:
N/A
MRC:
--
UOM:
--
MRC:
--
DEMIL:
Yes - DEMIL/MLI
Export Control Information  
FIIG:
--
FIIG:
A046B0
MRC:
--
INC:
05488
MRC:
--
IMM:
AX
Certified products icon

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.

Quality Commitment »

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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 4820-00-529-4177

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes valve (1), relief, pressure and temperature.

Recent Solicitations Most recent solicitations for NSN 4820-00-529-4177

End Date
Solicitation
Qty
Purchase Request
End Date:
2024-01-19
Solicitation:
SPE7MC24T6053
Qty:
10
Purchase Request:
7005803171
End Date:
2023-11-06
Solicitation:
SPE7MC24T1044
Qty:
9
Purchase Request:
0093125050
End Date:
2023-03-09
Solicitation:
SPE7MC23T6928
Qty:
6
Purchase Request:
7001463389
End Date:
2023-02-24
Solicitation:
SPE7MC23T6269
Qty:
6
Purchase Request:
7001463389
End Date:
2023-01-03
Solicitation:
SPE7M123T6912
Qty:
3
Purchase Request:
0093125050
End Date:
2022-08-08
Solicitation:
SPE7MC22T346J
Qty:
3
Purchase Request:
0093125050
End Date:
2022-03-04
Solicitation:
SPE7MC22T8281
Qty:
3
Purchase Request:
0093125050
End Date:
2020-01-21
Solicitation:
SPE7MC20T3652
Qty:
10
Purchase Request:
0083116292
End Date:
2019-04-29
Solicitation:
SPE7MC19T8883
Qty:
9
Purchase Request:
0079399499
End Date:
2018-04-26
Solicitation:
SPE7MC18T8718
Qty:
3
Purchase Request:
0073923729

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:
0.3000lbs
Item Weight:
--
Item Dim:
--
Container
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
LVL C
Container:
--
OPI:
O
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:
AE
PKG:
16Z0
PRES MAT:
00
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) O

Options can be exercised as to specific method of preservation or dod approved packaging materials to be used. however, basic preservation method shall be retained, supplemental data shall be complied with, and unit package dimensions shall not be increased by more than one inch. equal or better protection shall be given the item and there shall be no increase in the package cost.

Special Markings Code (SPC_MKG) 00

No special marking.

Method of Preservation (MOP) AE

Seal or plug all openings and preserve by method 10.

Preservation Material (PRES_MAT) 00

No requirement.

Import / Export

Schedule B Classification
Schedule B Number
NAIC National Association of Insurance Commissioners
End Use A classification system for U.S. exported and imported merchandise based on principal use rather than the physical characteristics of the merchandise. End-Use codes are assigned by the Bureau of Economic Analysis under the U.S. Department of Commerce.
SITC Commodity classification system defined by the United Nations.
USDA
HITECH
Schedule B:
8481400000
NAICS:
332911
End Use Class:
21180
SITC:
74740
USDA:
1
HITECH:
0

Schedule B Codes Definitions:

Schedule B 8481400000

Safety Or Relief Valves

End Use Code 21180

Industrial Machines, Other

Standard Intl. Trade Class (SITC) 74740

Safety Or Relief Valves

Freight

Universal / National freight and handling information
NMFC
Class
UFC
LTL
LCL
WCC
TCC
SHC
ADC
ACC
NMFC:
127220
NMF Description:
Pressure Reg/red/relief Valves Noi
UFC:
64490
LTL:
77.5
LCL:
77.5
WCC:
594
TCC:
Z
SHC:
Z
ADC:
A
ACC:
A

Freight Codes Definitions:

Cargo Type (TCC) Z

No special type of cargo code applicable.

Water Commodity (WCC) 594

Pumps and parts, (machinery and parts),(less than 35 feet).

Air Commodity (ACC) A

Supplies and equipment for aircraft and aerial targets, including aircraft and maintenance parts, aircraft accessories, aircraft.

Air Dimensions (ADC) A

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

Air Special Handling (SHC) Z

Other or no special handling required (sh)

DLA History / Forecast Quantities

Maritime Supply Chain
01/1602/1604/1605/1606/1608/1609/1611/1612/1601/1703/1704/1706/1707/1709/1712/1703/1806/1808/1812/1808/1810/1812/1802/1904/1906/1907/1909/1911/1901/2003/2005/2006/20
1.001.001.001.001.001.001.001.001.001.001.001.001.001.001.001.001.001.001.001.001.001.001.001.001.001.001.001.001.001.001.001.001.00

Manufacturers

This NSN is registered to the following cage codes.
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