The Spring,helical,extension, cataloged under National Stock Number 5360-00-421-1688, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Eaton Corp Opns & Technical Center. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-421-1688 |
| Primary Part Number | 969-376 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Eaton Corp Opns & Technical Center |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.281 INCHES NOMINAL IN |
| Load Rating | 1.30 POUNDS NOMINAL LBS |
| End Style | SHORT TWISTED HOOK BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | SAE 51414 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 1.044 INCHES NOMINAL IN |
| Inside Diameter | 0.237 INCHES NOMINAL IN |
| Spring Length Under Load | 2.300 INCHES NOMINAL IN |
| Coil Quantity | 23 |
| Coil Helix Direction | RIGHT-HAND |
| Material | STEEL OVERALL |
| Hook Radius | 0.125 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 |
|---|---|
| 969-376 PRIMARY | Eaton Corp Opns & Technical Center (USA) |
NSN 5360-00-421-1688 is a Spring,helical,extension, manufactured by Eaton Corp Opns & Technical Center, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-421-1688 has 1 manufacturer part number on file: 969-376 (Eaton Corp Opns & Technical Center).
Key specifications for 969-376: Spring Free Outside Diameter: 0.281 INCHES NOMINAL IN; Load Rating: 1.30 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.