The Spring,helical,extension, cataloged under National Stock Number 5360-01-476-0247, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. 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 | 5360-01-476-0247 |
| Primary Part Number | 74A672492-2001 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| End Style | SHORT TWISTED HOOK FIRST END |
| End Style | FULL LOOP SECOND END |
| Design Type | MAINSPRING |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | AMS5678 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 0.781 INCHES MINIMUM AND 0.841 INCHES MAXIMUM IN |
| Inside Diameter | 0.164 INCHES MINIMUM AND 0.264 INCHES MAXIMUM IN |
| Coil Quantity | 12 |
| Coil Helix Direction | RIGHT-HAND |
| Material | STEEL COMP 631 OVERALL |
| Hook Radius | 0.140 INCHES NOMINAL SECOND END IN |
| Hook Radius | 0.060 INCHES NOMINAL FIRST 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 |
|---|---|
| 74A672492-2001 PRIMARY | The Boeing Company Div Defense (USA) |
NSN 5360-01-476-0247 is a Spring,helical,extension, manufactured by The Boeing Company Div Defense, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-476-0247 has 1 manufacturer part number on file: 74A672492-2001 (The Boeing Company Div Defense).
Key specifications for 74A672492-2001: Spring Free Outside Diameter: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; End Style: SHORT TWISTED HOOK FIRST END; End Style: FULL LOOP SECOND END; Design Type: MAINSPRING. 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.