The Spring,helical,extension, cataloged under National Stock Number 5360-00-479-0232, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Bae Systems Information and Electronic Systems Integration Inc.. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-479-0232 |
| Primary Part Number | A556-302 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Bae Systems Information and Electronic Systems Integration Inc. |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.149 INCHES NOMINAL IN |
| Load Rating | 0.231 POUNDS NOMINAL LBS |
| End Style | SHORT TWISTED HOOK BOTH ENDS |
| Design Type | OPEN |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | 18-8 DRAWN SPRING TEMPER MUSIC WIRE MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 0.418 INCHES NOMINAL IN |
| Inside Diameter | 0.125 INCHES NOMINAL IN |
| Spring Length Under Load | 0.625 INCHES NOMINAL IN |
| Coil Quantity | 12 |
| Coil Helix Direction | LEFT-HAND |
| Material | STEEL OVERALL |
| Hook Radius | 0.062 INCHES NOMINAL BOTH ENDS IN |
| 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 |
|---|---|
| A556-302 PRIMARY | Bae Systems Information and Electronic Systems Integration Inc. (USA) |
NSN 5360-00-479-0232 is a Spring,helical,extension, manufactured by Bae Systems Information and Electronic Systems Integration Inc., classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-479-0232 has 1 manufacturer part number on file: A556-302 (Bae Systems Information and Electronic Systems Integration Inc.).
Key specifications for A556-302: Spring Free Outside Diameter: 0.149 INCHES NOMINAL IN; Load Rating: 0.231 POUNDS NOMINAL LBS; End Style: SHORT TWISTED HOOK BOTH ENDS; Design Type: OPEN. 13 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.