The Spring,helical,extension, cataloged under National Stock Number 5360-00-249-5899, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Brp Us Inc. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5360-00-249-5899 |
| Primary Part Number | 302706 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Brp Us Inc |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.375 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| End Style | SHORT TWISTED HOOK BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | QQ-W-423 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 1.050 INCHES NOMINAL IN |
| Spring Deflection Rate | 0.165 POUNDS PER INCH MINIMUM AND 0.185 POUNDS PER INCH MAXIMUM LBS |
| Coil Quantity | 5 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL COMP 302 OVERALL |
| Hook Radius | 0.094 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 |
|---|---|
| 302706 PRIMARY | Brp Us Inc (USA) |
| Reference | Meaning |
|---|---|
| 302706 | 5/9 Secondary reference Outboard Marine Corp Johnson Motors Div |
| 302706 | 5/9 Secondary reference U.S. Government activity |
NSN 5360-00-249-5899 is a Spring,helical,extension, manufactured by Brp Us Inc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-249-5899 has 1 manufacturer part number on file: 302706 (Brp Us Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5999-01-380-3153, 2815-01-556-4790. Verify interchangeability with system specifications before substitution.
Key specifications for 302706: Spring Free Outside Diameter: 0.375 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN; End Style: SHORT TWISTED HOOK BOTH ENDS; Design Type: CLOSED; Style Designator: CYLINDRICAL. 11 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.