The Spring,helical,extension, cataloged under National Stock Number 5360-00-115-2553, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5360-00-115-2553 |
| Primary Part Number | 305642 |
| 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 | 0.641 INCHES NOMINAL IN |
| End Style | RAISED HOOK SECOND END |
| End Style | DOBBY HOOK FIRST END |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Opening Width | 0.500 INCHES NOMINAL FIRST END IN |
| Opening Width | 0.219 INCHES NOMINAL SECOND END IN |
| Spring Free Length | 5.312 INCHES NOMINAL IN |
| Coil to Hook Inside Length | 0.406 INCHES NOMINAL SECOND END IN |
| Coil to Hook Inside Length | 0.656 INCHES NOMINAL FIRST END IN |
| Coil Helix Direction | RIGHT-HAND |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hook Radius | 0.125 INCHES NOMINAL FIRST END IN |
| Hook Radius | 0.188 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 |
| Part Number | Manufacturer |
|---|---|
| 305642 PRIMARY | Brp Us Inc (USA) |
| Reference | Meaning |
|---|---|
| 305642 | 5/9 Secondary reference Outboard Marine Corp Johnson Motors Div |
NSN 5360-00-115-2553 is a Spring,helical,extension, manufactured by Brp Us Inc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-115-2553 has 1 manufacturer part number on file: 305642 (Brp Us Inc).
1 possible match (shared part number, not a government interchangeability claim): 4930-01-099-8794. Verify interchangeability with system specifications before substitution.
Key specifications for 305642: Spring Free Outside Diameter: 0.641 INCHES NOMINAL IN; End Style: RAISED HOOK SECOND END; End Style: DOBBY HOOK FIRST END; Design Type: CLOSED. 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.