NSN 5360-01-027-1936, 5360010271936
SPRING

Federal Supply Classification: FSC 5360 - Coil, Flat, Leaf, and Wire Springs
National Item Identification Number: NIIN 010271936
Codification Country: United States
Item Name Code: INC 77777
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: (N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

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DLMS^® Summary

National Stock Number 5360-01-027-1936

National Stock Number (NSN) 5360-01-027-1936, or NIIN 010271936, (spring) was assigned September 10, 1976 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There is only one manufacturer part number associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are deemed design controlled or valid supply parts.

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 8 contracts issued for this part number, with 8 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 4 different suppliers. The last contract numbers awarded were: SPE4A525F5806, SPE4A524V1785, SPE4A624F7103, SPE4A624F7103, SPE4A624F7103. The total value of the awarded contracts has been US$ 17,367.18.

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. 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) 77777. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5360010271936 does not contain precious metals.

This information was last updated on Jul 01, 2025.

Technical Characteristics

MATERIAL: (MATT) STEEL CORROSION RESISTING
PART NAME ASSIGNED BY CONTROLLING AGENCY: (CXCY) SPRING-PILOT
SPECIAL FEATURES: (FEAT) MATERIAL: 17-7 PH PER AMS 5673
SPECIAL TEST FEATURES: (SPCL) ENDS CLOSED AND GROUND SQUARE WITHIN 3 DEGREES, BEARING SURFACE OF END COILS: 270 DEGREES MINIMUM; BREAK EDGES 01 INTERNAL DIEAMETER AND OUTSIDE DIAMETER OF END COILS AND ENDS OF WIRE; SPRING MUST WITHSTAND REPEATED COMPRESSION TO 600 WITHOUT TAKING A PERMANENT SET; BAKE AFTER PLATING; DO NOT COMPRESS SPRING TO LESS THAN .6"; CADMIUM PLATE AND PASSIVATE
SUPPLEMENTARY FEATURES: (SUPP) WIRE DIAMETER: .085"; NOMINAL OUTSIDE DIAMETER: .510"; MINIMUM INSIDE DIAMETER AT ACTIVE COILS: .325"; MAXIMUM UOTSIDE DIAMETER AT ACTIVE COILS: .530"; MAXIMUM OUTSIDE DIAMETER AT END COILS: .530"; MINIMUM INSIDE DIAMETER AT END COILS: .325"; DIRECTION OF COILS: LEFT HAND OR RIGHT HAND; NUMBER OF ACTIVE COILS: 5; NUMBER OF TOTAL COILS: 7; FREE LENGTH: .884"; LOAD AT .750" 23.54LBS (55,000PSI COMPUTED TOTAL STRESS); LOAD AT .710", 33.15LBS, 76,000PSI (COMPUTED TOTAL STRESS); MAXIMUM SOLID HEIGHT: .595" (COMPUTED LOAD: 55LBS, 125,000PSI COMPUTED TOTAL STRESS); THEO SOLID HEIGHT: .510" (71LBS COMPUTED LOAD, 170,000PSI COMPUTED TOTAL STRESS)
SURFACE TREATMENT: (SFTT) CADMIUM AND PASSIVATE