The Gear,spur, cataloged under National Stock Number 3020-00-294-7344, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-00-294-7344 |
| Primary Part Number | 655636 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Keyway Nominal Width | 0.093 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.875 INCHES BOTH ENDS IN |
| Teeth Quantity | 128 |
| Body Style | WEBBED, WITH LIGHTENING HOLES |
| Bore Style | TAPERED W/KEYWAY FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.043 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.166 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,CLASS 2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 3.9980 INCHES MINIMUM AND 4.0000 INCHES MAXIMUM IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 4.060 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.222 INCHES FIRST END IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | COPPER OVERALL |
| Face Nominal Width | 0.218 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 |
|---|---|
| 655636 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 231582 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms - Mitchel Field |
NSN 3020-00-294-7344 is a Gear,spur, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-294-7344 has 1 manufacturer part number on file: 655636 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
4 possible matches (shared part number, not a government interchangeability claim): 2840-00-406-8358, 5975-00-935-2163, 5961-01-062-4668. Verify interchangeability with system specifications before substitution.
Key specifications for 655636: Keyway Nominal Width: 0.093 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.875 INCHES BOTH ENDS IN; Teeth Quantity: 128; 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.