The Spring,helical,extension, cataloged under National Stock Number 5360-00-451-8551, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Lee Spring Company Llc. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5360-00-451-8551 |
| Primary Part Number | LE-045D-13SS |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Lee Spring Company Llc |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.375 INCHES NOMINAL IN |
| Load Rating | 8.330 POUNDS NOMINAL LBS |
| End Style | SHORT TWISTED HOOK BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | QQ-W-423/AMS FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 4.090 INCHES NOMINAL IN |
| Spring Deflection Rate | 1.874 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 0.285 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Coil Helix Direction | LEFT-HAND |
| Material | STEEL COMP 302 OVERALL |
| Hook Radius | 0.1425 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 |
|---|---|
| LE-045D-13SS PRIMARY | Lee Spring Company Llc (USA) |
| Reference | Meaning |
|---|---|
| LE-045D-13SS | 3/9 Design control — primary reference U.S. Government activity |
| 600077 | 5/2 Secondary reference U.S. Government activity |
| 600077 | 5/9 Secondary reference Sabre Industries Inc |
| E0360-045-4000S | 5/9 Secondary reference Associated Spring Us, Llc Div Corry |
NSN 5360-00-451-8551 is a Spring,helical,extension, manufactured by Lee Spring Company Llc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-451-8551 has 1 manufacturer part number on file: LE-045D-13SS (Lee Spring Company Llc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-612-2378. Verify interchangeability with system specifications before substitution.
Key specifications for LE-045D-13SS: Spring Free Outside Diameter: 0.375 INCHES NOMINAL IN; Load Rating: 8.330 POUNDS NOMINAL LBS; End Style: SHORT TWISTED HOOK BOTH ENDS; Design Type: CLOSED. 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.