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NSN 5340-01-124-3956, 5340011243956
SEAT,HELICAL COMPRESSION SPRING

Federal Supply Classification
FSC 5340 - Hardware, Commercial
National Item Identification Number
NIIN 011243956
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 5340-01-124-3956

National Stock Number (NSN) 5340-01-124-3956, or NIIN 011243956, (seat,helical compression spring) was assigned January 1, 1982 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 one supplier. 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.

This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Mar 31, 2014. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4A514M4800. The total value of the awarded contracts has been US$ 360.00.

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

There has been very little 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 Mar 29, 2014, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. 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 5340011243956 does not contain precious metals.

This NSN is associated to Schedule B 7320905060: springs of iron or steel, other than of wire nesoi. The Schedule B End Use is listed as finished metal shapes.

This information was last updated on .


Technical Characteristics

MATERIAL
(MATL) STEEL,ASTM A108
END DIAMETER
(BBRB) 1.2140 INCHES MINIMUM AND 1.2160 INCHES MAXIMUM
BORE DIAMETER
(ABXV) 0.7760 INCHES MINIMUM AND 0.7960 INCHES MAXIMUM
COUNTERBORE DIAMETER
(AAWY) 1.3120 INCHES MINIMUM AND 1.3270 INCHES MAXIMUM
DESIGN TYPE
(APGF) SOLID
DISTANCE FROM END TO FIRST STEP
(BZDH) 0.0670 INCHES MINIMUM AND 0.0770 INCHES MAXIMUM
FIRST STEP DIAMETER
(ABPR) 1.6610 INCHES MINIMUM AND 1.6760 INCHES MAXIMUM
FIRST STEP LENGTH
(ABPS) 0.9590 INCHES MINIMUM AND 0.9790 INCHES MAXIMUM
OVERALL HEIGHT
(ABKW) 1.3020 INCHES MINIMUM AND 1.3220 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE
MATERIAL HARDNESS RATING
(ALME) 32.0 ROCKWELL C MINIMUM
MATERIAL
(MATT) STEEL
SECOND END DIAMETER
(AMFZ) 1.4970 INCHES MINIMUM AND 1.4990 INCHES MAXIMUM
SECOND COUNTERBORE DIAMETER
(BZLN) 1.0100 INCHES MINIMUM AND 1.0200 INCHES MAXIMUM
UNABLE TO DECODE
(MATL) UNABLE TO DECODE
MATERIAL
(MATT) STEEL,ASTM A108

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