The Gear,antibacklash,spur, cataloged under National Stock Number 3020-01-094-4591, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-094-4591 |
| Primary Part Number | 3274205-2 |
| Item Name | Gear,antibacklash,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.240 INCHES BOTH ENDS IN |
| Teeth Quantity | 45 |
| Second Step Nominal Diameter | 0.500 INCHES FIRST END IN |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 1,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.313 INCHES FIRST END IN |
| First Step Nominal Length | 0.032 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 12 |
| Second Step Nominal Length | 0.031 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-A-25074 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.9375 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 0.375 INCHES FIRST END IN |
| Hub Style Designator | 2 STEPS FIRST END |
| End Nominal Length | 0.250 INCHES FIRST END IN |
| Nominal Outside Diameter | 0.978 INCHES IN |
| Surface Treatment | ANODIZE OVERALL |
| End Nominal Diameter | 0.312 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Attachment Method | CLAMP |
| Face Nominal Width | 0.125 INCHES 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 |
|---|---|
| 3274205-2 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| MZ7DP-045XX-AP2 | Designatronics Incorporated Div Sterling Instruments Div (USA) |
| 3274205-2 PRIMARY | A.t.l.a.s. Aeronautique Inc (CAN) |
| Reference | Meaning |
|---|---|
| 3274205 | D/9 Drawing number reference only Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 3020-01-094-4591 is a Gear,antibacklash,spur, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-094-4591 has 3 manufacturer part numbers on file: 3274205-2 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), MZ7DP-045XX-AP2 (Designatronics Incorporated Div Sterling Instruments Div), 3274205-2 (A.t.l.a.s. Aeronautique Inc).
Key specifications for 3274205-2: Bore Nominal Diameter: 0.240 INCHES BOTH ENDS IN; Teeth Quantity: 45; Second Step Nominal Diameter: 0.500 INCHES FIRST END IN; Surface Treatment Document and Classification: MIL-A-8625,TYPE 1,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 23 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.