The Gear,spur, cataloged under National Stock Number 3020-00-953-2181, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-953-2181 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.0937 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.1235 INCHES FIRST END IN |
| Teeth Quantity | 12 |
| Clamping Surface Nominal Length | 0.1625 INCHES FIRST END IN |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.160 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 13 |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | 66,ASI 416/SAE 51416 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.1453 INCHES NOMINAL IN |
| Tooth Form | STUB |
| Hub Style Designator | SPLIT FIRST END |
| Nominal Outside Diameter | 0.1666 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 0.152 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 |
| Reference | Meaning |
|---|---|
| 20-202-12 | 3/9 Design control — primary reference Meggitt (new Hampshire), Inc |
NSN 3020-00-953-2181 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-953-2181: Bore Nominal Diameter: 0.0937 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.1235 INCHES FIRST END IN; Teeth Quantity: 12; Clamping Surface Nominal Length: 0.1625 INCHES FIRST END IN. 17 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.