The Gear,antibacklash,spur, cataloged under National Stock Number 3020-01-100-5010, 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 Westfield Precision Products Inc West Coast Gear Products Div. Government technical data includes 19 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-100-5010 |
| Primary Part Number | 97310034 |
| Item Name | Gear,antibacklash,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Westfield Precision Products Inc West Coast Gear Products Div |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.125 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.184 INCHES FIRST END IN |
| Backlash Designation | GRADE C |
| Teeth Quantity | 46 |
| Clamping Surface Nominal Length | 0.221 INCHES FIRST END IN |
| Surface Treatment Document and Classification | QQ-P-35,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.221 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 10 |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.6379 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | SPLIT FIRST END |
| Nominal Outside Diameter | 0.6647 INCHES IN |
| Surface Treatment | PASSIVATE HUB |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 0.104 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 97310034 PRIMARY | Westfield Precision Products Inc West Coast Gear Products Div (USA) |
| S9703AR0167 PRIMARY | Designatronics Inc Perfect Gear and Instrument Div (USA) |
| 7521082 | Southern Gear & Machine Inc (USA) |
| Reference | Meaning |
|---|---|
| 901047-3C | 5/2 Secondary reference U.S. Government activity |
| KG47-463C | 5/9 Secondary reference Marino Enterprises, Inc. Dba Gear Technology Div Gear Technology |
| KG47-463C | 5/9 Secondary reference Kosmo Gears |
| 901047 | D/9 Drawing number reference only U.S. Government activity |
NSN 3020-01-100-5010 is a Gear,antibacklash,spur, manufactured by Westfield Precision Products Inc West Coast Gear Products Div, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-100-5010 has 3 manufacturer part numbers on file: 97310034 (Westfield Precision Products Inc West Coast Gear Products Div), S9703AR0167 (Designatronics Inc Perfect Gear and Instrument Div), 7521082 (Southern Gear & Machine Inc).
Key specifications for 97310034: Bore Nominal Diameter: 0.125 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.184 INCHES FIRST END IN; Backlash Designation: GRADE C; Teeth Quantity: 46. 19 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.
NSN 3020-01-100-5010 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.