The Spring,helical,extension, cataloged under National Stock Number 5360-01-203-0639, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Associated Spring Us, Llc Div Corry. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-203-0639 |
| Primary Part Number | E0240-026-2750M |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Associated Spring Us, Llc Div Corry |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.250 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| End Style | SHORT TWISTED HOOK BOTH ENDS |
| Style Designator | CYLINDRICAL |
| Spring Free Length | 2.750 INCHES NOMINAL IN |
| Coil to Hook Inside Length | 0.198 INCHES NOMINAL BOTH ENDS IN |
| Inside Diameter | 0.198 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Coil Helix Direction | LEFT-HAND OR RIGHT-HAND |
| Material | STEEL OVERALL |
| Hook Radius | 0.099 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 |
|---|---|
| E0240-026-2750M | Associated Spring Us, Llc Div Corry (USA) |
| Reference | Meaning |
|---|---|
| LE-026C-10 | 5/9 Secondary reference U.S. Government activity |
| LE-026C-10MW | 3/9 Design control — primary reference U.S. Government activity |
| LE-026C-10MW | C/1 Advisory reference — outside the item-of-supply concept Lee Spring Company Llc |
NSN 5360-01-203-0639 is a Spring,helical,extension, manufactured by Associated Spring Us, Llc Div Corry, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-203-0639 has 1 manufacturer part number on file: E0240-026-2750M (Associated Spring Us, Llc Div Corry).
Key specifications for E0240-026-2750M: Spring Free Outside Diameter: 0.250 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; End Style: SHORT TWISTED HOOK BOTH ENDS; 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.