The Shaft and Link Assembly, cataloged under National Stock Number 2540-01-063-5745, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Item Name | Shaft and Link Assembly |
| FSC / FSG | 2540 — Vehicular Furniture and Accessories (FSG 25) |
| Manufacturers | Caterpillar Inc Div Caterpillar Defense (CAGE 11083); United Technologies Corp Electro Systems Inc (CAGE 24956); Wiggins Lift Co Inc (CAGE 60764) |
| Parameter | Value |
|---|---|
| NSN | 2540-01-063-5745 |
| Primary Part Number | 9D4510 |
| Item Name | Shaft and Link Assembly |
| FSC / FSG | 2540 / 25 — Vehicular Furniture and Accessories |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 9D4510 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| SH721202A PRIMARY | United Technologies Corp Electro Systems Inc (USA) |
| 665620 | Wiggins Lift Co Inc (USA) |
| Reference | Meaning |
|---|---|
| SH721202A | 5/9 Secondary reference Ambac International Corporation Div Ambac International |
NSN 2540-01-063-5745 is a Shaft and Link Assembly, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
NSN 2540-01-063-5745 has 3 manufacturer part numbers on file: 9D4510 (Caterpillar Inc Div Caterpillar Defense), SH721202A (United Technologies Corp Electro Systems Inc), 665620 (Wiggins Lift Co Inc).
Possible hazard — SDS may be required (DLA HMIC P). 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.