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NSN 5340-00-725-5379, 5340007255379
SEAT,HELICAL COMPRESSION SPRING

Federal Supply Classification
FSC 5340 - Hardware, Commercial
National Item Identification Number
NIIN 007255379
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 5340-00-725-5379

National Stock Number (NSN) 5340-00-725-5379, or NIIN 007255379, (seat,helical compression spring) was assigned February 14, 1968 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN. ISO Group has several sources of supply for this NSN.

This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. 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: SPE7L124P2515, SPE7L123P1245, SPE7L123P1245, SPE7L122P3396, SPE5E718CF148. The total value of the awarded contracts has been US$ 123,129.46.

This NSN is unique to one weapons system.

There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 20,183. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 09, 2017, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.

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 5340007255379 does not contain precious metals.

This information was last updated on .


Technical Characteristics

UNABLE TO DECODE
(MATL) UNABLE TO DECODE
DISTANCE FROM END TO FIRST STEP
(BZDH) 2.0420 INCHES NOMINAL
COUNTERBORE LENGTH
(BZDL) 2.6050 INCHES NOMINAL
DESIGN TYPE
(APGF) SOLID
FIRST STEP LENGTH
(ABPS) 0.3800 INCHES NOMINAL
OVERALL HEIGHT
(ABKW) 3.4800 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 1345H ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1345H ASSN STD SINGLE MATERIAL RESPONSE
MATERIAL HARDNESS RATING
(ALME) 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
MATERIAL
(MATT) STEEL COMP 1345H
SECOND COUNTERBORE DIAMETER
(BZLN) 2.4370 INCHES NOMINAL
SECOND COUNTERBORE LENGTH
(BZDM) 1.0580 INCHES NOMINAL
SECOND STEP DIAMETER
(ABPT) 2.9980 INCHES NOMINAL
SPECIAL FEATURES
(FEAT) INSIDE LENGTH 1.5000 IN;INSIDE WIDTH 1.3200 IN;USED ON M109 HOWITZER FAMILY
STYLE DESIGNATOR
(STYL) SEAT
MATERIAL
(MATL) STEEL ALLOY, FED STD 66, AISI OR SAE 1345H

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