The Gear,bevel, cataloged under National Stock Number 3020-00-477-7978, 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 Meritor Industrial Products, Llc. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-00-477-7978 |
| Primary Part Number | 2233U151 |
| Item Name | Gear,bevel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Meritor Industrial Products, Llc |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.063 INCHES BOTH ENDS IN |
| Teeth Quantity | 9 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Teeth Type | HYPOID |
| Nominal Overall Length | 1.2656 INCHES IN |
| Style Designator | PERIPHERAL FACE, HUBLESS |
| Pitch Diameter | 2.7500 INCHES NOMINAL IN |
| Nominal Outside Diameter | 3.2500 INCHES IN |
| Material | STEEL OVERALL |
| Face Nominal Width | 1.0312 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 |
|---|---|
| 2233U151 PRIMARY | Meritor Industrial Products, Llc (USA) |
| 2233U151 PRIMARY | Meritor Heavy Vehicle Systems, Llc (USA) |
| 87979-A02T-16 | Kovatch Corp. (USA) |
| 173804 | Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA) |
| Reference | Meaning |
|---|---|
| 173804 | 5/9 Secondary reference Hyster-Yale Group, Inc. |
| 2233U151 | 5/9 Secondary reference Long-Airdox Co |
NSN 3020-00-477-7978 is a Gear,bevel, manufactured by Meritor Industrial Products, Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-477-7978 has 4 manufacturer part numbers on file: 2233U151 (Meritor Industrial Products, Llc), 2233U151 (Meritor Heavy Vehicle Systems, Llc), 87979-A02T-16 (Kovatch Corp.), 173804 (Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling).
2 possible matches (shared part number, not a government interchangeability claim): 5310-00-560-9971, 5315-01-512-2100. Verify interchangeability with system specifications before substitution.
Key specifications for 2233U151: Bore Nominal Diameter: 1.063 INCHES BOTH ENDS IN; Teeth Quantity: 9; Body Style: PLAIN, SOLID; Bore Style: PLAIN BOTH ENDS. 11 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.