The Spring,helical,compression, cataloged under National Stock Number 5360-00-050-6551, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Army Weapons Command Attn Amswe-Ree-S. Government technical data includes 14 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 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 | 5360-00-050-6551 |
| Primary Part Number | 506551 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Army Weapons Command Attn Amswe-Ree-S |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.125 INCHES NOMINAL IN |
| Load Rating | 1.800 POUNDS NOMINAL LBS |
| End Style | SPRING END,GROUND BOTH ENDS |
| Spring Solid Length | 0.175 INCHES NOMINAL IN |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | QQ-W-470,COMP A FED SPEC 1ST MATERIAL RESPONSE AND QQ-W-412,COMP 1,TYPE 1 FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| Spring Free Length | 0.406 INCHES NOMINAL IN |
| Inside Diameter | 0.095 INCHES NOMINAL IN |
| Spring Length Under Load | 0.175 INCHES NOMINAL IN |
| Spring Solid Outside Diameter | 0.125 INCHES NOMINAL IN |
| Coil Quantity | 9 |
| Surface Treatment | PHOSPHATE OVERALL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL UNS K08500 AND STEEL OVERALL |
| 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 |
|---|---|
| 506551 | Army Weapons Command Attn Amswe-Ree-S (USA) |
NSN 5360-00-050-6551 is a Spring,helical,compression, manufactured by Army Weapons Command Attn Amswe-Ree-S, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-050-6551 has 1 manufacturer part number on file: 506551 (Army Weapons Command Attn Amswe-Ree-S).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-701-5026. Verify interchangeability with system specifications before substitution.
Key specifications for 506551: Spring Free Outside Diameter: 0.125 INCHES NOMINAL IN; Load Rating: 1.800 POUNDS NOMINAL LBS; End Style: SPRING END,GROUND BOTH ENDS; Spring Solid Length: 0.175 INCHES NOMINAL IN. 14 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.