The Spring,helical,extension, cataloged under National Stock Number 5360-00-006-2505, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Kalmar AC Inc. 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 | 5360-00-006-2505 |
| Primary Part Number | 4818685 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Kalmar AC Inc |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.998 INCHES NOMINAL IN |
| End Style | OFFSET HOOK, SIDE BOTH ENDS |
| Design Type | OPEN |
| Style Designator | CYLINDRICAL |
| Opening Width | 0.281 INCHES NOMINAL SECOND END IN |
| Opening Width | 0.686 INCHES NOMINAL FIRST END IN |
| Spring Free Length | 6.790 INCHES NOMINAL IN |
| Coil to Hook Inside Length | 2.464 INCHES NOMINAL FIRST END IN |
| Coil to Hook Inside Length | 3.142 INCHES NOMINAL SECOND END IN |
| Inside Diameter | 0.812 INCHES NOMINAL IN |
| Coil Quantity | 1 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL OVERALL |
| Hook Radius | 0.141 INCHES NOMINAL SECOND END IN |
| Hook Radius | 0.343 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 |
|---|---|
| 4818685 PRIMARY | Kalmar AC Inc (USA) |
NSN 5360-00-006-2505 is a Spring,helical,extension, manufactured by Kalmar AC Inc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-006-2505 has 1 manufacturer part number on file: 4818685 (Kalmar AC Inc).
Key specifications for 4818685: Spring Free Outside Diameter: 0.998 INCHES NOMINAL IN; End Style: OFFSET HOOK, SIDE BOTH ENDS; Design Type: OPEN; Style Designator: CYLINDRICAL. 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.