The Gear,bevel, cataloged under National Stock Number 3020-01-131-1810, 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 Williams International Co., L.l.c.. Government technical data includes 22 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-131-1810 |
| Primary Part Number | 29566 |
| Item Name | Gear,bevel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Williams International Co., L.l.c. |
| Status | ACTIVE |
| Keyway Nominal Width | 0.065 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 1.181 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.380 INCHES BOTH ENDS IN |
| Teeth Quantity | 35 |
| Body Style | PLAIN, SOLID |
| Pitch Angle | 36.0000 DEGREES |
| Tooth Direction | RIGHT |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.0317 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 12 |
| Teeth Type | SPIRAL |
| Nominal Overall Length | 0.502 INCHES IN |
| Style Designator | PERIPHERAL FACE, PROTRUDING HUBS |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 1.7500 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 1.8250 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.6294 INCHES BOTH ENDS IN |
| Surface Treatment | CARBON OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP E9310 OVERALL |
| Face Nominal Width | 0.150 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3020-01-131-1810 is a Gear,bevel, manufactured by Williams International Co., L.l.c., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-131-1810 has 2 manufacturer part numbers on file: 29566 (Arrow Gear Llc), 29566 (Williams International Co., L.l.c.).
2 possible matches (shared part number, not a government interchangeability claim): 3450-01-449-7205, 5305-01-598-7133. Verify interchangeability with system specifications before substitution.
Key specifications for 29566: Keyway Nominal Width: 0.065 INCHES BOTH ENDS IN; Bore Nominal Diameter: 1.181 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.380 INCHES BOTH ENDS IN; Teeth Quantity: 35. 22 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.
NSN 3020-01-131-1810 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.