The Gear,spur, cataloged under National Stock Number 3020-00-075-8488, 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 Bmt Aerospace Usa, Inc.. Government technical data includes 23 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. 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 | 3020-00-075-8488 |
| Primary Part Number | 482883 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Bmt Aerospace Usa, Inc. |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.515 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.685 INCHES BOTH ENDS IN |
| Teeth Quantity | 7 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 0.572 INCHES BOTH ENDS IN |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.335 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.732 INCHES FIRST END IN |
| Hardness Rating | 79.0 ROCKWELL A MINIMUM AND 85.0 ROCKWELL A MAXIMUM OVERALL |
| Nominal Overall Length | 1.660 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | AMS 6260 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 1.1667 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Spline Quantity | 16 BOTH ENDS |
| Nominal Outside Diameter | 1.500 INCHES IN |
| Surface Treatment | CARBON OVERALL |
| Pressure Angle | 28.0000 DEGREES |
| Material | STEEL COMP E9310 OVERALL |
| Counterbore Nominal Depth | 0.710 INCHES BOTH ENDS IN |
| Spline Pitch Diameter | 0.5000 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 0.598 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
NSN 3020-00-075-8488 is a Gear,spur, manufactured by Bmt Aerospace Usa, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-075-8488 has 3 manufacturer part numbers on file: 482883 (Bmt Aerospace Usa, Inc.), 482883 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 482883 (Arrow Gear Llc).
1 possible match (shared part number, not a government interchangeability claim): 4720-00-964-8207. Verify interchangeability with system specifications before substitution.
Key specifications for 482883: Bore Nominal Diameter: 0.515 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.685 INCHES BOTH ENDS IN; Teeth Quantity: 7; 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.