The Spring,helical,extension, cataloged under National Stock Number 5360-00-858-3645, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Miltope Corporation. Government technical data includes 15 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 | 5360-00-858-3645 |
| Primary Part Number | A417239-2 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Miltope Corporation |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.187 INCHES NOMINAL IN |
| Load Rating | 1.26 POUNDS MINIMUM AND 1.47 POUNDS MAXIMUM LBS |
| End Style | SHORT TWISTED HOOK FIRST END |
| End Style | EYE LOOP SECOND END |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | FED STD 66,AISI/SAE FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 2.664 INCHES NOMINAL IN |
| Inside Diameter | 0.143 INCHES NOMINAL IN |
| Spring Length Under Load | 3.562 INCHES MINIMUM AND 3.750 INCHES MAXIMUM IN |
| Coil Quantity | 114 |
| Coil Helix Direction | RIGHT-HAND |
| Material | STEEL COMP 302 OVERALL |
| Hook Radius | 0.047 INCHES NOMINAL SECOND END IN |
| Hook Radius | 0.072 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 |
|---|---|
| A417239-2 PRIMARY | Miltope Corporation (USA) |
NSN 5360-00-858-3645 is a Spring,helical,extension, manufactured by Miltope Corporation, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-858-3645 has 1 manufacturer part number on file: A417239-2 (Miltope Corporation).
Key specifications for A417239-2: Spring Free Outside Diameter: 0.187 INCHES NOMINAL IN; Load Rating: 1.26 POUNDS MINIMUM AND 1.47 POUNDS MAXIMUM LBS; End Style: SHORT TWISTED HOOK FIRST END; End Style: EYE LOOP SECOND END. 15 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.