The Gear,spur, cataloged under National Stock Number 3020-00-937-4355, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 24 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-937-4355 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.071 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.219 INCHES SECOND END IN |
| Teeth Quantity | 35 |
| Body Style | WEBBED, WITH LIGHTENING HOLES |
| Counterbore Nominal Diameter | 1.218 INCHES BOTH ENDS IN |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.116 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.233 INCHES FIRST END IN |
| Hardness Rating | 80.0 ROCKWELL A MINIMUM AND 83.0 ROCKWELL A MAXIMUM OVERALL |
| Nominal Overall Length | 0.961 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | AMS 6260 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 3.1110 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Spline Quantity | 22 BOTH ENDS |
| Nominal Outside Diameter | 3.300 INCHES IN |
| Surface Treatment | CHROMIUM BODY |
| Surface Treatment | CHROMIUM HUB |
| Pressure Angle | 25.0000 DEGREES |
| Material | STEEL COMP E9310 OVERALL |
| Counterbore Nominal Depth | 0.290 INCHES BOTH ENDS IN |
| Spline Pitch Diameter | 1.0000 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 0.612 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 699333 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-937-4355 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-937-4355: Bore Nominal Diameter: 1.071 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.219 INCHES SECOND END IN; Teeth Quantity: 35; Body Style: WEBBED, WITH LIGHTENING HOLES. 24 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 3020-00-937-4355 has DEMIL Code Q. 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.