The Gear,spur, cataloged under National Stock Number 3020-00-815-7553, 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 Lockheed Martin Corporation Div Rms. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-815-7553 |
| Primary Part Number | 7204979P1 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.188 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.247 INCHES FIRST END IN |
| Backlash Designation | GRADE C |
| Teeth Quantity | 56 |
| Clamping Surface Nominal Length | 0.307 INCHES FIRST END IN |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.307 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 10 OR QUALITY NUMBER 11 |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.8740 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN |
| Tooth Form | STANDARD |
| Hub Style Designator | SPLIT FIRST END |
| Nominal Outside Diameter | 0.905 INCHES IN |
| Surface Treatment | ANODIZE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Attachment Method | CLAMP |
| Face Nominal Width | 0.093 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 |
| Part Number | Manufacturer |
|---|---|
| 7204979P1 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
NSN 3020-00-815-7553 is a Gear,spur, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-815-7553 has 1 manufacturer part number on file: 7204979P1 (Lockheed Martin Corporation Div Rms).
Key specifications for 7204979P1: Bore Nominal Diameter: 0.188 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.247 INCHES FIRST END IN; Backlash Designation: GRADE C; Teeth Quantity: 56. 21 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.