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NSN 5340-00-740-7605, 5340007407605
SEAT,HELICAL COMPRESSION SPRING

Federal Supply Classification
FSC 5340 - Hardware, Commercial
National Item Identification Number
NIIN 007407605
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.
Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS® Summary

National Stock Number 5340-00-740-7605

National Stock Number (NSN) 5340-00-740-7605, or NIIN 007407605, (seat,helical compression spring) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 5 manufacturer part numbers associated with this NSN. 4 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 6 suppliers. Today, 6 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

This NSN is somewhat common among different platforms, belonging to 3 different weapons systems.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 12, 2013, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The data or the rights to use the data needed to purchase this part from additional sources are not owned by the Government and it has been determined that it is uneconomical to purchase them. Valid AMCs: 1, 2, 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 5340007407605 contains an unknown precious metal.

This information was last updated on .


Technical Characteristics

END DIAMETER
(BBRB) 0.5010 INCHES MINIMUM AND 0.5030 INCHES MAXIMUM
BORE DIAMETER
(ABXV) 0.3490 INCHES MINIMUM AND 0.3530 INCHES MAXIMUM
BORE TAPER IN DEG
(BYYF) 20.0
COUNTERBORE DIAMETER
(AAWY) 0.4010 INCHES MINIMUM AND 0.4110 INCHES MAXIMUM
DESIGN TYPE
(APGF) SOLID
DISTANCE FROM END TO FIRST STEP
(BZDH) 0.2240 INCHES MINIMUM AND 0.2280 INCHES MAXIMUM
FEATURES PROVIDED
(CBBL) CASEHARDENED
FIRST STEP DIAMETER
(ABPR) 1.0940 INCHES MINIMUM AND 1.1050 INCHES MAXIMUM
FSC APPLICATION DATA
(ZZZV) MISCELLANEOUS ENGINE ACCESSORIES,NONAIRCRAFT
OVERALL HEIGHT
(ABKW) 0.3180 INCHES MINIMUM AND 0.3240 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) FED STD 66,AISI/SAE 1137 FED STD SINGLE MATERIAL RESPONSE
MATERIAL
(MATT) STEEL COMP 1137
SPECIAL FEATURES
(FEAT) BOTTOM OF SEAT SAW SLOT 0.062 IN.WIDE BY 0.750 IN.LG
STYLE DESIGNATOR
(STYL) SEAT
III FSC APPLICATION DATA
(ZZZV) MISCELLANEOUS ENGINE ACCESSORIES,NONAIRCRAFT
UNABLE TO DECODE
(MATL) UNABLE TO DECODE
MATERIAL
(MATL) STEEL,FED STD 66,AISI/SAE 1137
MATERIAL
(MATT) STEEL,FED STD 66,AISI/SAE 1137

Manufacturer Part Numbers

240143

RNCC
5
RNVC
9
2417289

RNCC
5
RNVC
9
2417289

RNCC
5
RNVC
9
33749

RNCC
5
RNVC
9
4054435

RNCC
5
RNVC
9
9M388

RNCC
3
RNVC
2

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