The Spring,helical,torsion, cataloged under National Stock Number 5360-00-399-6771, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-399-6771 |
| Primary Part Number | 8683179 |
| Item Name | Spring,helical,torsion |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.508 INCHES NOMINAL IN |
| End Style | STRAIGHT BEND END (RIGHT) OVERALL |
| End Length | 0.449 INCHES NOMINAL BOTH ENDS IN |
| Center Section Width | 0.375 INCHES NOMINAL IN |
| Style Designator | SINGLE TORSION RIGHT HAND |
| Material Document and Classification | QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 0.875 INCHES NOMINAL IN |
| Coil Axis to Center Section Distance | 0.875 INCHES NOMINAL IN |
| Inside Diameter | 0.406 INCHES NOMINAL IN |
| End Length From First Bend to Second Bend or End | 0.312 INCHES NOMINAL BOTH ENDS IN |
| Coil Quantity | 5-1/4 |
| Surface Treatment | PHOSPHATE OVERALL |
| Coil Helix Direction | LEFT-HAND |
| Material | STEEL UNS K08500 OVERALL |
| End Angular Relationship | END W/RH HELIX OF COIL ANGLED TO CENTER SECTION AND END W/LH HELIX OF COIL ANGLED TO CENTER SECTION |
| 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 |
|---|---|
| 8683179 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 5360003996771 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 5360-00-399-6771 is a Spring,helical,torsion, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-399-6771 has 1 manufacturer part number on file: 8683179 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8683179: Spring Free Outside Diameter: 0.508 INCHES NOMINAL IN; End Style: STRAIGHT BEND END (RIGHT) OVERALL; End Length: 0.449 INCHES NOMINAL BOTH ENDS IN; Center Section Width: 0.375 INCHES NOMINAL IN. 15 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.