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NSN 5340-01-149-2027, 5340011492027
SEAT,HELICAL COMPRESSION SPRING

Federal Supply Classification
FSC 5340 - Hardware, Commercial
National Item Identification Number
NIIN 011492027
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 5340-01-149-2027

National Stock Number (NSN) 5340-01-149-2027, or NIIN 011492027, (seat,helical compression spring) was assigned March 16, 1983 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 2 manufacturer part numbers 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, 2 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 a year. There have been 2 contracts issued for this part number, with 2 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPE5EK21P1298, SPE5E221P0462. The total value of the awarded contracts has been US$ 2,184.40.

This NSN is somewhat common among different platforms, belonging to 4 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 Apr 12, 2013, 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 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 5340011492027 does not contain precious metals.

This NSN is associated to Schedule B 7320205000: helical springs not suitable for motor-vehicle suspension, of iron or steel. The Schedule B End Use is listed as finished metal shapes.

This information was last updated on .


Technical Characteristics

UNABLE TO DECODE
(SURF) UNABLE TO DECODE
DISTANCE FROM END TO FIRST STEP
(BZDH) 0.3280 INCHES NOMINAL
END DIAMETER
(BBRB) 0.5000 INCHES NOMINAL
BORE DIAMETER
(ABXV) 0.2810 INCHES MINIMUM AND 0.2830 INCHES MAXIMUM
COUNTERBORE DIAMETER
(AAWY) 0.3480 INCHES MINIMUM AND 0.3520 INCHES MAXIMUM
COUNTERBORE LENGTH
(BZDL) 0.3740 INCHES NOMINAL
DESIGN TYPE
(APGF) SOLID
FIRST STEP DIAMETER
(ABPR) 0.5300 INCHES NOMINAL
FIRST STEP LENGTH
(ABPS) 0.1000 INCHES NOMINAL
OVERALL HEIGHT
(ABKW) 0.4900 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE
MATERIAL HARDNESS RATING
(ALME) 32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM
MATERIAL
(MATT) STEEL COMP 630
SECOND STEP DIAMETER
(ABPT) 0.7500 INCHES NOMINAL
SPECIAL FEATURES
(FEAT) NOT CASEHARDENED
STYLE DESIGNATOR
(STYL) SEAT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) PS13001, MCDONNELL DOUGLAS CORP MFR REF SINGLE TREATMENT RESPONSE
SURFACE TREATMENT
(SFTT) PASSIVATE
SURFACE TREATMENT
(SURF) PASSIVATED, PS13001, MCDONNELL DOUGLAS CORP
UNABLE TO DECODE
(MATL) UNABLE TO DECODE
MATERIAL
(MATL) STEEL, AMS 5643

Manufacturer Part Numbers


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