The Gear,spur, cataloged under National Stock Number 3020-01-331-1780, 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 Smatco Industries Inc. 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 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-331-1780 |
| Primary Part Number | 71125 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Smatco Industries Inc |
| Status | ACTIVE |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Style Designator | HUBLESS |
| 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 |
|---|---|
| 71125 PRIMARY | Smatco Industries Inc (USA) |
NSN 3020-01-331-1780 is a Gear,spur, manufactured by Smatco Industries Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-331-1780 has 1 manufacturer part number on file: 71125 (Smatco Industries Inc).
2 possible matches (shared part number, not a government interchangeability claim): 2530-01-393-1011, 5310-01-661-2343. Verify interchangeability with system specifications before substitution.
Key specifications for 71125: Bore Style: W/ KEYWAY BOTH ENDS; Style Designator: HUBLESS; End Item Identification: TBW INDUSTRIES GUIDE SHAFT ASSEMBLY,66 SERIES. 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.