The Gear and Sprocket Assembly, cataloged under National Stock Number 3020-01-061-7657, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-061-7657 |
| Item Name | Gear and Sprocket Assembly |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF GEAR,SPROCKET,AND DRUM;GEAR IS STEEL,15 TEETH,RIGHT HAND HELICAL,0.684 IN.OD,14.5000 DEG PRESSURE ANGLE,0.375 IN.DIA BORE;SPROCKET IS ALUMINUM ALLOY,20 TEETH,DESIGNED FOR 8MM FILM,1.012 IN.OD,0.050 IN.FACE WIDTH,0.687 IN.DIA BORE;GEAR HAS 0.375 IN. FACE WIDTH MM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 5200A-2704 | 5/9 Secondary reference U.S. Government activity |
| 350082 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-061-7657 is a Gear and Sprocket Assembly, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5998-01-372-0369, 5963-01-594-0063. Verify interchangeability with system specifications before substitution.
Key specifications for 3020-01-061-7657: General Characteristics Item Description: CONSISTS OF GEAR,SPROCKET,AND DRUM;GEAR IS STEEL,15 TEETH,RIGHT HAND HELICAL,0.684 IN.OD,14.5000 DEG PRESSURE ANGLE,0.375 IN.DIA BORE;SPROCKET IS ALUMINUM ALLOY,20 TEETH,DESIGNED FOR 8MM FILM,1.012 IN.OD,0.050 IN.FACE WIDTH,0.687 IN.DIA BORE;GEAR HAS 0.375 IN. FACE WIDTH MM. 1 specification is 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.