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NSN 5340-01-180-0637, 5340011800637
SEAT,HELICAL COMPRESSION SPRING

Federal Supply Classification
FSC 5340 - Hardware, Commercial
National Item Identification Number
NIIN 011800637
Codification Country
United States
Item Name Code
INC 24328
Criticality
(X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code
(P) There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product.
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DLMS® Summary

National Stock Number 5340-01-180-0637

National Stock Number (NSN) 5340-01-180-0637, or NIIN 011800637, (seat,helical compression spring) was assigned May 24, 1984 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.

This part number is actively being procured by the US Government, with procurement history within the last 90 days. There have been 10 contracts issued for this part number, with 10 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 6 different suppliers. The last contract numbers awarded were: SPE7M025V7238, SPE5EJ18V6354, SPE5EK18V3751, SPE5EK17V2828, SPE5EK14M1007. The total value of the awarded contracts has been US$ 198,766.18.

This NSN is somewhat common among different platforms, belonging to 4 different weapons systems.

There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 26, 2012, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 24328. [A CIRCULAR ITEM, USUALLY HAVING A FLAT OR GROOVED FLANGE, BOSS(ES), AND/OR COUNTERBORE, DESIGNED TO ACCOMMODATE THE END OF THE SPRING. IT IS USED TO POSITION THE SPRING BUT DOES NOT ENCASE THE SPRING OR RESTRAIN LATERAL MOTION. IT MAY BE USED IN CONJUNCTION WITH A RETAINER,HELICAL COMPRESSION SPRING. EXCLUDES:WASHER (AS MODIFIED), SEAT,BALL SOCKET, AND HOLDER,SPRING. SEE ALSO ROTOR,ENGINE POPPET VALVE.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 5340011800637 does not contain precious metals.

This information was last updated on .


Technical Characteristics

MATERIAL
(MATL) STEEL, AISI 1045
UNABLE TO DECODE
(MATL) UNABLE TO DECODE
END DIAMETER
(BBRB) 1.9600 INCHES NOMINAL
BORE DIAMETER
(ABXV) 1.2580 INCHES NOMINAL
BORE TAPER IN DEG
(BYYF) 7.0
DESIGN TYPE
(APGF) SOLID
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) AISI 1045 ASSN STD SINGLE MATERIAL RESPONSE
OVERALL HEIGHT
(ABKW) 3.3900 INCHES NOMINAL
MATERIAL
(MATT) STEEL COMP 1045
SECOND END DIAMETER
(AMFZ) 2.2800 INCHES NOMINAL
SECOND STEP DIAMETER
(ABPT) 4.3300 INCHES NOMINAL
SPECIAL FEATURES
(FEAT) LUBRICATION PASSAGE HOLE FROM SPRING SEAT SURFACE TO BORE
SPHERICAL SEAT TOP RADIUS
(BZMH) 0.0800 INCHES NOMINAL

Manufacturer Part Numbers


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