The Spring,helical,torsion, cataloged under National Stock Number 5360-01-251-9726, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-251-9726 |
| Primary Part Number | 12597077 |
| Item Name | Spring,helical,torsion |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| Spring Free Outside Diameter | 18.5 MILLIMETERS NOMINAL MM |
| Surface Treatment Document and Classification | 57-02C,TYPE 3,CLASS A,GRADE 1 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| End Style | HALF HOOK SECOND END |
| End Style | OFFSET HALF LOOP, LEFT END FIRST END |
| Style Designator | SINGLE TORSION LEFT HAND |
| Spring Free Length | 9.5 MILLIMETERS NOMINAL MM |
| Inside Diameter | 15.5 MILLIMETERS NOMINAL MM |
| End Length From First Bend to Second Bend or End | 6.3 MILLIMETERS NOMINAL OVERALL MM |
| Surface Treatment | PHOSPHATE MANGANESE OVERALL |
| Coil Helix Direction | RIGHT-HAND |
| End Length From Second Bend to Third Bend or End | 5.0 MILLIMETERS NOMINAL OVERALL MM |
| Hook Radius | 2.0 MILLIMETERS NOMINAL OVERALL MM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 87XD1029 | Fn America Llc Div Columbia, Sc (USA) |
| 12597077 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| 3602019077 | Fn America Llc Div Columbia, Sc (USA) |
NSN 5360-01-251-9726 is a Spring,helical,torsion, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-251-9726 has 3 manufacturer part numbers on file: 87XD1029 (Fn America Llc Div Columbia, Sc), 12597077 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 3602019077 (Fn America Llc Div Columbia, Sc).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-664-5467. Verify interchangeability with system specifications before substitution.
Key specifications for 12597077: Spring Free Outside Diameter: 18.5 MILLIMETERS NOMINAL MM; Surface Treatment Document and Classification: 57-02C,TYPE 3,CLASS A,GRADE 1 MFR REF SINGLE TREATMENT RESPONSE OVERALL; End Style: HALF HOOK SECOND END; End Style: OFFSET HALF LOOP, LEFT END FIRST END. 12 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.