The Gear,bevel, cataloged under National Stock Number 3020-01-128-4677, 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 Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-128-4677 |
| Primary Part Number | 6037-0021-01 |
| Item Name | Gear,bevel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.540 INCHES BOTH ENDS IN |
| Backlash Designation | GRADE C |
| Teeth Quantity | 29 |
| Surface Treatment Document and Classification | MIL-T-10727,TYPE1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Pitch Angle | 54.0903 DEGREES |
| Bore Style | PLAIN BOTH ENDS |
| Precision Classification | QUALITY NUMBER 8 |
| Teeth Type | STRAIGHT |
| Material Document and Classification | MIL-S-8690 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Surface Treatment | TIN OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 8620 OVERALL |
| Attachment Method | SLOT |
| 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 |
|---|---|
| 6037-0021-01 PRIMARY | Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division (USA) |
| Reference | Meaning |
|---|---|
| 6037-0021 | D/9 Drawing number reference only Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division |
NSN 3020-01-128-4677 is a Gear,bevel, manufactured by Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-128-4677 has 1 manufacturer part number on file: 6037-0021-01 (Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division).
Key specifications for 6037-0021-01: Bore Nominal Diameter: 0.540 INCHES BOTH ENDS IN; Backlash Designation: GRADE C; Teeth Quantity: 29; Surface Treatment Document and Classification: MIL-T-10727,TYPE1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 13 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.