The Spring,helical,compression, cataloged under National Stock Number 5360-00-330-9178, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-330-9178 |
| Primary Part Number | 1329921 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.875 INCHES NOMINAL IN |
| End Style | SPRING END,GROUND BOTH ENDS |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | QQ-W-432,COND B FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 0.859 INCHES NOMINAL IN |
| Spring Deflection Rate | 250.000 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 0.643 INCHES NOMINAL IN |
| Spring Solid Outside Diameter | 0.875 INCHES NOMINAL IN |
| Coil Quantity | 4 |
| Surface Treatment | PASSIVATE OVERALL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL COMP 302 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 |
|---|---|
| 1329921 | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| Reference | Meaning |
|---|---|
| 1329921 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5360-00-330-9178 is a Spring,helical,compression, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-330-9178 has 1 manufacturer part number on file: 1329921 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
2 possible matches (shared part number, not a government interchangeability claim): 6680-00-401-0991, 2590-01-478-3857. Verify interchangeability with system specifications before substitution.
Key specifications for 1329921: Spring Free Outside Diameter: 0.875 INCHES NOMINAL IN; End Style: SPRING END,GROUND BOTH ENDS; Style Designator: CYLINDRICAL; Material Document and Classification: QQ-W-432,COND B FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 12 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.