The Spring,helical,extension, cataloged under National Stock Number 5360-00-346-1822, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5360-00-346-1822 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.625 INCHES NOMINAL IN |
| End Style | SHORT TWISTED HOOK SECOND END |
| End Style | REDUCED CENTER LOOP FIRST END |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | MIL-S-8696,PHYSICAL COND C,SURFACE COND 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 2.425 INCHES NOMINAL IN |
| Coil to Hook Inside Length | 0.281 INCHES NOMINAL FIRST END IN |
| Coil to Hook Inside Length | 0.312 INCHES NOMINAL SECOND END IN |
| Inside Diameter | 0.465 INCHES NOMINAL IN |
| Coil Quantity | 21 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL COMP 6150 OVERALL |
| Hook Radius | 0.141 INCHES NOMINAL FIRST END IN |
| Hook Radius | 0.156 INCHES NOMINAL SECOND END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| L68529PC7 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 108580 | 3/9 Design control — primary reference U.S. Government activity |
| X31993PC9 | 5/9 Secondary reference U.S. Government activity |
NSN 5360-00-346-1822 is a Spring,helical,extension, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3040-01-531-5111. Verify interchangeability with system specifications before substitution.
Key specifications for 5360-00-346-1822: Spring Free Outside Diameter: 0.625 INCHES NOMINAL IN; End Style: SHORT TWISTED HOOK SECOND END; End Style: REDUCED CENTER LOOP FIRST END; Design Type: CLOSED. 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.