The Spring,helical,extension, cataloged under National Stock Number 5360-00-604-0760, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Elsag Bailey 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-604-0760 |
| Primary Part Number | 681690A1 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Elsag Bailey Inc |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.651 INCHES NOMINAL IN |
| End Style | TAPERED END W/ BOLT FIRST END |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Spring Free Length | 3.125 INCHES NOMINAL IN |
| Bolt Diameter | 0.160 INCHES NOMINAL SECOND END IN |
| Bolt Diameter | 0.157 INCHES NOMINAL FIRST END IN |
| Inside Diameter | 0.507 INCHES NOMINAL IN |
| Coil Quantity | 18 |
| Coil Helix Direction | RIGHT-HAND |
| Material | 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 |
|---|---|
| 681690A1 PRIMARY | Elsag Bailey Inc (USA) |
NSN 5360-00-604-0760 is a Spring,helical,extension, manufactured by Elsag Bailey Inc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-604-0760 has 1 manufacturer part number on file: 681690A1 (Elsag Bailey Inc).
Key specifications for 681690A1: Spring Free Outside Diameter: 0.651 INCHES NOMINAL IN; End Style: TAPERED END W/ BOLT FIRST END; 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.