The Gear,antibacklash,spur, cataloged under National Stock Number 3020-00-682-3867, 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 General Dynamics Mission Systems, Inc. Dba Gdms. Government technical data includes 26 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-682-3867 |
| Primary Part Number | 44-32324A01 |
| Item Name | Gear,antibacklash,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | General Dynamics Mission Systems, Inc. Dba Gdms |
| Status | ACTIVE |
| Teeth Quantity | 150 |
| Second Step Nominal Diameter | 0.880 INCHES FIRST END IN |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Nominal Distance Between Body Face and Protruding Hub End | 0.875 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.551 INCHES SECOND END IN |
| First Step Nominal Length | 0.267 INCHES FIRST END IN |
| First Step Nominal Length | 0.021 INCHES SECOND END IN |
| Nominal Overall Length | 1.530 INCHES IN |
| Second Step Nominal Length | 0.070 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 3.1250 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 0.500 INCHES SECOND END IN |
| First Step Nominal Diameter | 0.380 INCHES FIRST END IN |
| Hub Style Designator | 2 STEPS FIRST END |
| Hub Style Designator | 1 STEP SECOND END |
| End Nominal Length | 0.530 INCHES SECOND END IN |
| End Nominal Length | 0.538 INCHES FIRST END IN |
| Nominal Outside Diameter | 3.1666 INCHES IN |
| Surface Treatment | ANODIZE OVERALL |
| End Nominal Diameter | 0.310 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Attachment Method | INTERNAL RING GROOVE |
| Face Nominal Width | 0.104 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 |
|---|---|
| 44-32324A01 | Southern Gear & Machine Inc (USA) |
| 44-32324A01 PRIMARY | General Dynamics Mission Systems, Inc. Dba Gdms (USA) |
| Reference | Meaning |
|---|---|
| 44-32324A01 | 5/9 Secondary reference U.S. Government activity |
| 44-32324A01 | 5/9 Secondary reference O'brien Gear Co |
NSN 3020-00-682-3867 is a Gear,antibacklash,spur, manufactured by General Dynamics Mission Systems, Inc. Dba Gdms, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-682-3867 has 2 manufacturer part numbers on file: 44-32324A01 (Southern Gear & Machine Inc), 44-32324A01 (General Dynamics Mission Systems, Inc. Dba Gdms).
Key specifications for 44-32324A01: Teeth Quantity: 150; Second Step Nominal Diameter: 0.880 INCHES FIRST END IN; Surface Treatment Document and Classification: MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Nominal Distance Between Body Face and Protruding Hub End: 0.875 INCHES FIRST END IN. 26 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.