The Spring,helical,extension, cataloged under National Stock Number 5360-00-149-9006, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-149-9006 |
| Primary Part Number | 4B6493 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Spring Free Outside Diameter | 1.000 INCHES NOMINAL IN |
| Load Rating | 34.00 POUNDS MINIMUM AND 40.00 POUNDS MAXIMUM LBS |
| End Style | SHORT TWISTED HOOK BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | JAN-S-1160,NO. 2-CANCELED MIL SPEC 1ST MATERIAL RESPONSE OR JAN-S-1160,NO. 3-CANCELED MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Spring Free Length | 7.366 INCHES NOMINAL IN |
| Spring Length Under Load | 10.375 INCHES NOMINAL IN |
| Coil Quantity | 45-3/4 |
| Coil Helix Direction | RIGHT-HAND |
| Material | STEEL COMP 1060 OR STEEL COMP 1065 OVERALL |
| Hook Radius | 0.375 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 |
|---|---|
| 4B6493 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 1762456 | 5/9 Secondary reference Caterpillar Inc Div Caterpillar Defense |
| 4B649 | 5/9 Secondary reference Caterpillar Inc Div Caterpillar Defense |
NSN 5360-00-149-9006 is a Spring,helical,extension, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-149-9006 has 1 manufacturer part number on file: 4B6493 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 4B6493: Spring Free Outside Diameter: 1.000 INCHES NOMINAL IN; Load Rating: 34.00 POUNDS MINIMUM AND 40.00 POUNDS MAXIMUM LBS; End Style: SHORT TWISTED HOOK BOTH ENDS; Design Type: CLOSED. 12 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.