The Gear,spur, cataloged under National Stock Number 3020-00-528-0330, 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 - Mitchel Field. Government technical data includes 18 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 | 3020-00-528-0330 |
| Primary Part Number | 818702 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| Keyway Nominal Width | 0.0935 INCHES FIRST END IN |
| Hub Nominal Diameter | 1.000 INCHES BOTH ENDS IN |
| Teeth Quantity | 112 |
| Body Style | WEBBED, WITH LIGHTENING HOLES |
| Bore Style | TAPERED W/KEYWAY FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.0469 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.1719 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUBS |
| Taper Major Nominal Diameter | 0.350 INCHES FIRST END IN |
| Material Document and Classification | MIL-B-16522-CANCELED MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 3.4980 INCHES MINIMUM AND 3.5000 INCHES MAXIMUM IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 3.560 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.2244 INCHES FIRST END IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | COPPER ALLOY OVERALL |
| Face Nominal Width | 0.219 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 3020-00-528-0330 is a Gear,spur, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-528-0330 has 2 manufacturer part numbers on file: 818702 (Lockheed Martin Corporation Div Rms - Mitchel Field), 687570 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-512-2009. Verify interchangeability with system specifications before substitution.
Key specifications for 818702: Keyway Nominal Width: 0.0935 INCHES FIRST END IN; Hub Nominal Diameter: 1.000 INCHES BOTH ENDS IN; Teeth Quantity: 112; Body Style: WEBBED, 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.