The Gear,spur, cataloged under National Stock Number 3020-01-307-3010, 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 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-307-3010 |
| Primary Part Number | T-8003157-3 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Nominal Distance From End to Second Groove | 0.719 INCHES FIRST END IN |
| Bore Nominal Diameter | 0.499 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.750 INCHES FIRST END IN |
| Teeth Quantity | 24 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.688 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 1.0000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Second Groove Nominal Width | 0.219 INCHES FIRST END IN |
| Hub Style Designator | 2 GROOVES FIRST END |
| Nominal Outside Diameter | 1.083 INCHES IN |
| Nominal Distance From End to First Groove | 0.563 INCHES FIRST END IN |
| Second Groove Nominal Diameter | 0.812 INCHES FIRST END IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | STEEL CORROSION RESISTING OVERALL |
| First Groove Nominal Diameter | 1.000 INCHES FIRST END IN |
| First Groove Nominal Width | 0.156 INCHES FIRST END IN |
| Face Nominal Width | 0.250 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 |
|---|---|
| T-8003157-3 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| 298377-3 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 298377 | D/9 Drawing number reference only Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 3020-01-307-3010 is a Gear,spur, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-307-3010 has 2 manufacturer part numbers on file: T-8003157-3 (Lockheed Martin Corporation Div Rms), 298377-3 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
7 possible matches (shared part number, not a government interchangeability claim): 3020-01-307-3011, 3020-01-307-8009, 3020-01-307-8874. Verify interchangeability with system specifications before substitution.
Key specifications for T-8003157-3: Nominal Distance From End to Second Groove: 0.719 INCHES FIRST END IN; Bore Nominal Diameter: 0.499 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.750 INCHES FIRST END IN; Teeth Quantity: 24. 20 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.