The Gear,spur, cataloged under National Stock Number 3020-00-445-4192, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Raytheon Company Dba Raytheon Co. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-445-4192 |
| Primary Part Number | 355471-1 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-C-5541,TYPE 1,GRADE B,CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Style Designator | PROTRUDING HUB |
| Hub Style Designator | PINNED FIRST END |
| Surface Treatment | CHROMATE OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3020-00-445-4192 is a Gear,spur, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-445-4192 has 2 manufacturer part numbers on file: 355471-1 (Raytheon Company), 355471-1 (Raytheon Company Dba Raytheon Co).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-233-9954. Verify interchangeability with system specifications before substitution.
Key specifications for 355471-1: Surface Treatment Document and Classification: MIL-C-5541,TYPE 1,GRADE B,CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Body Style: PLAIN, SOLID; Bore Style: PLAIN BOTH ENDS; Style Designator: PROTRUDING HUB. 6 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.