The Spring,helical,torsion, cataloged under National Stock Number 5360-00-930-4556, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5360-00-930-4556 |
| Primary Part Number | 11589357 |
| 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 | 0.640 INCHES NOMINAL IN |
| End Style | STRAIGHT BEND END (RIGHT) OVERALL |
| End Length | 0.680 INCHES NOMINAL BOTH ENDS IN |
| Center Section Width | 1.750 INCHES NOMINAL IN |
| Style Designator | SINGLE TORSION RIGHT HAND |
| Spring Free Length | 1.750 INCHES NOMINAL IN |
| Coil Axis to Center Section Distance | 1.680 INCHES NOMINAL IN |
| Inside Diameter | 0.500 INCHES NOMINAL IN |
| End Length From First Bend to Second Bend or End | 0.445 INCHES NOMINAL OVERALL IN |
| Coil Quantity | 4-5/6 |
| Surface Treatment | ENAMEL OVERALL |
| Center Loop Radius | 0.438 INCHES NOMINAL IN |
| Coil Helix Direction | LEFT-HAND |
| Material | STEEL OVERALL |
| End Angular Relationship | ENDS ANGLED ONE TO OTHER AND END W/RH 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 |
|---|---|
| 11589357 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 5360009304556 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| 5360009304556 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 5360-00-930-4556 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 5360-00-930-4556 has 1 manufacturer part number on file: 11589357 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 5306-01-721-3780. Verify interchangeability with system specifications before substitution.
Key specifications for 11589357: Spring Free Outside Diameter: 0.640 INCHES NOMINAL IN; End Style: STRAIGHT BEND END (RIGHT) OVERALL; End Length: 0.680 INCHES NOMINAL BOTH ENDS IN; Center Section Width: 1.750 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.