The Gear,antibacklash,spur, cataloged under National Stock Number 3020-01-070-0639, 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 Designatronics Inc Perfect Gear and Instrument Div. Government technical data includes 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-070-0639 |
| Primary Part Number | 9713-195 |
| Item Name | Gear,antibacklash,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Designatronics Inc Perfect Gear and Instrument Div |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.125 INCHES BOTH ENDS IN |
| Teeth Quantity | 72 |
| Surface Treatment Document and Classification | MIL-STD-171,FINISH NO. 5.4.1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Nominal Distance Between Body Face and Protruding Hub End | 0.225 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.062 INCHES SECOND END IN |
| Nominal Overall Length | 0.395 INCHES IN |
| Style Designator | PERIPHERAL FACE, HUBLESS |
| Pitch Diameter | 0.7500 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 0.7698 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL CORROSION RESISTING OVERALL |
| Attachment Method | CLAMP |
| Face Nominal Width | 0.108 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 |
|---|---|
| AGA0731 | Southern Gear & Machine Inc (USA) |
| 9713-195 PRIMARY | Designatronics Inc Perfect Gear and Instrument Div (USA) |
| 97310032-4 PRIMARY | Westfield Precision Products Inc West Coast Gear Products Div (USA) |
| Reference | Meaning |
|---|---|
| 901055-4C | 5/2 Secondary reference U.S. Government activity |
| 901055 | D/9 Drawing number reference only U.S. Government activity |
NSN 3020-01-070-0639 is a Gear,antibacklash,spur, manufactured by Designatronics Inc Perfect Gear and Instrument Div, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-070-0639 has 3 manufacturer part numbers on file: AGA0731 (Southern Gear & Machine Inc), 9713-195 (Designatronics Inc Perfect Gear and Instrument Div), 97310032-4 (Westfield Precision Products Inc West Coast Gear Products Div).
1 possible match (shared part number, not a government interchangeability claim): 3020-01-433-8311. Verify interchangeability with system specifications before substitution.
Key specifications for 9713-195: Bore Nominal Diameter: 0.125 INCHES BOTH ENDS IN; Teeth Quantity: 72; Surface Treatment Document and Classification: MIL-STD-171,FINISH NO. 5.4.1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Nominal Distance Between Body Face and Protruding Hub End: 0.225 INCHES FIRST END IN. 15 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.