The Gear,spur, cataloged under National Stock Number 3020-00-754-7429, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-754-7429 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.750 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.230 INCHES BOTH ENDS IN |
| Teeth Quantity | 56 |
| Body Style | WEBBED, OFFSET, WITH LIGHTENING HOLES |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.205 INCHES FIRST END IN |
| Hardness Rating | 60.0 ROCKWELL C MINIMUM AND 64.0 ROCKWELL C MAXIMUM TEETH |
| Style Designator | ONE PROTRUDING HUB, ONE FLUSH HUB |
| Material Document and Classification | 66 FED SPEC SINGLE MATERIAL RESPONSE AND AISI/SAE 8620H ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 6.7250 INCHES MINIMUM AND 6.9950 INCHES MAXIMUM IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Spline Quantity | 28 BOTH ENDS |
| Nominal Outside Diameter | 7.247 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Spline Pitch Diameter | 1.7450 INCHES MINIMUM AND 1.7550 INCHES MAXIMUM BOTH ENDS IN |
| Face Nominal Width | 1.000 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 |
|---|---|
| C8004-09-004FN30 | 5/2 Secondary reference U.S. Government activity |
| B8004-09-004-30 | 5/2 Secondary reference U.S. Government activity |
| XV09-004-30 | 3/9 Design control — primary reference Project Manager Amphibious Lighters St Louis Mo |
NSN 3020-00-754-7429 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-754-7429: Bore Nominal Diameter: 1.750 INCHES BOTH ENDS IN; Hub Nominal Diameter: 2.230 INCHES BOTH ENDS IN; Teeth Quantity: 56; Body Style: WEBBED, OFFSET, WITH LIGHTENING HOLES. 18 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.