The Spring,helical,extension, cataloged under National Stock Number 5360-00-392-0758, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Coffin Turbo Pump Inc. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-392-0758 |
| Primary Part Number | A6626 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Coffin Turbo Pump Inc |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.691 INCHES NOMINAL IN |
| Load Rating | 20.00 POUNDS MINIMUM AND 24.00 POUNDS MAXIMUM LBS |
| End Style | SHORT TWISTED HOOK BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | ASTM A313-67 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 2.941 INCHES NOMINAL IN |
| Coil to Hook Inside Length | 0.531 INCHES NOMINAL BOTH ENDS IN |
| Inside Diameter | 0.531 INCHES NOMINAL IN |
| Spring Length Under Load | 3.750 INCHES NOMINAL IN |
| Coil Quantity | 20 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL OVERALL |
| Hook Radius | 0.266 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 |
|---|---|
| E8256ITEM611 | Coffin Turbo Pump Inc (USA) |
| A6626 PRIMARY | Coffin Turbo Pump Inc (USA) |
NSN 5360-00-392-0758 is a Spring,helical,extension, manufactured by Coffin Turbo Pump Inc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-392-0758 has 2 manufacturer part numbers on file: E8256ITEM611 (Coffin Turbo Pump Inc), A6626 (Coffin Turbo Pump Inc).
2 possible matches (shared part number, not a government interchangeability claim): 2990-00-888-2856, 5999-00-970-5301. Verify interchangeability with system specifications before substitution.
Key specifications for A6626: Spring Free Outside Diameter: 0.691 INCHES NOMINAL IN; Load Rating: 20.00 POUNDS MINIMUM AND 24.00 POUNDS MAXIMUM LBS; End Style: SHORT TWISTED HOOK 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.