The Gear,spur, cataloged under National Stock Number 3020-00-776-7404, 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 Renk America Llc Div Renk America. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 3020-00-776-7404 |
| Primary Part Number | 515486 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Renk America Llc Div Renk America |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.873 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.185 INCHES FIRST END IN |
| Teeth Quantity | 27 |
| Body Style | PLAIN, SOLID |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.642 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 3.190 INCHES FIRST END IN |
| First Step Nominal Length | 0.642 INCHES SECOND END IN |
| Hardness Rating | 58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 3.3750 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 1.620 INCHES SECOND END IN |
| Hub Style Designator | PLAIN FIRST END |
| Hub Style Designator | 1 STEP SECOND END |
| Spline Quantity | 16 BOTH ENDS |
| End Nominal Length | 0.720 INCHES SECOND END IN |
| Nominal Outside Diameter | 3.625 INCHES IN |
| End Nominal Diameter | 1.185 INCHES SECOND END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 8617 OR STEEL COMP 8620 OR STEEL COMP 8720 OVERALL |
| Spline Pitch Diameter | 0.8000 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 0.500 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 |
NSN 3020-00-776-7404 is a Gear,spur, manufactured by Renk America Llc Div Renk America, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-776-7404 has 2 manufacturer part numbers on file: 7767404 (U S Army Tank Automotive Command Amsta-Im-Mm), 515486 (Renk America Llc Div Renk America).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-484-4682. Verify interchangeability with system specifications before substitution.
Key specifications for 515486: Bore Nominal Diameter: 0.873 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.185 INCHES FIRST END IN; Teeth Quantity: 27; Body Style: PLAIN, SOLID. 23 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.