The Spring,helical,extension, cataloged under National Stock Number 5360-00-337-3777, 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 Legacy Am&m. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-337-3777 |
| Primary Part Number | 202-53127 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.313 INCHES NOMINAL IN |
| Load Rating | 0.500 POUNDS NOMINAL LBS |
| End Style | HAND LOOP BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 5.896 INCHES NOMINAL IN |
| Spring Deflection Rate | 0.249 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 0.261 INCHES NOMINAL IN |
| Spring Length Under Load | 7.219 INCHES NOMINAL IN |
| Coil Quantity | 112 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL OVERALL |
| Hook Radius | 0.130 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 |
|---|---|
| 202-53127 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
NSN 5360-00-337-3777 is a Spring,helical,extension, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-337-3777 has 1 manufacturer part number on file: 202-53127 (The Boeing Company Div Legacy Am&m).
Key specifications for 202-53127: Spring Free Outside Diameter: 0.313 INCHES NOMINAL IN; Load Rating: 0.500 POUNDS NOMINAL LBS; End Style: HAND LOOP BOTH ENDS; 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.