The Retainer,nut Bolt, cataloged under National Stock Number 2950-00-948-1771, is classified within Federal Supply Class 2950 (Turbosupercharger and Components) of the Engine Accessories group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2950-00-948-1771 |
| Primary Part Number | 3S4487 |
| Item Name | Retainer,nut Bolt |
| FSC / FSG | 2950 / 29 — Turbosupercharger and Components |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| FSC Application Data | TURBOCHARGER,DIESEL ENGINE |
| General Characteristics Item Description | 0.025 IN. THK,0.400 IN. W 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 |
|---|---|
| 3S4487 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 405157 | 5/9 Secondary reference Honeywell International Inc. Div Aerospace - Torrance |
| 3S4487 | 5/9 Secondary reference Holt Bros |
NSN 2950-00-948-1771 is a Retainer,nut Bolt, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2950, Turbosupercharger and Components. Status: active.
NSN 2950-00-948-1771 has 1 manufacturer part number on file: 3S4487 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 3S4487: FSC Application Data: TURBOCHARGER,DIESEL ENGINE; General Characteristics Item Description: 0.025 IN. THK,0.400 IN. W IN; End Item Identification: 61159333498. 2 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.