The Gear,bevel, cataloged under National Stock Number 3020-00-555-7447, 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 Heavy Vehicle Systems, Llc. Government technical data includes 15 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-00-555-7447 |
| Primary Part Number | 2233G449 |
| Item Name | Gear,bevel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Meritor Heavy Vehicle Systems, Llc |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.003 INCHES BOTH ENDS IN |
| Teeth Quantity | 9 |
| Body Style | PLAIN, SOLID |
| Pitch Angle | 0.8699 DEGREES |
| Bore Style | PLAIN BOTH ENDS |
| Teeth Type | STRAIGHT |
| Nominal Overall Length | 1.374 INCHES IN |
| Style Designator | PERIPHERAL FACE, HUBLESS |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 8620 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 3.1420 INCHES NOMINAL IN |
| Nominal Outside Diameter | 3.687 INCHES IN |
| Pressure Angle | 25.0000 DEGREES |
| Material | STEEL COMP 8620H OVERALL |
| Body Recess Nominal Depth | 0.2430 INCHES FIRST END IN |
| Face Nominal Width | 0.916 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 |
|---|---|
| 2233G449 PRIMARY | Meritor Heavy Vehicle Systems, Llc (USA) |
| 136778H1 | Komatsu America Corp. (USA) |
| Reference | Meaning |
|---|---|
| 136778 | 5/9 Secondary reference Komatsu American Intl Co |
| 136778H1 | 5/9 Secondary reference Komatsu American Intl Co |
| 2233G449 | 5/9 Secondary reference Meritor Industrial Products, Llc |
NSN 3020-00-555-7447 is a Gear,bevel, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-555-7447 has 2 manufacturer part numbers on file: 2233G449 (Meritor Heavy Vehicle Systems, Llc), 136778H1 (Komatsu America Corp.).
1 possible match (shared part number, not a government interchangeability claim): 6750-01-427-1271. Verify interchangeability with system specifications before substitution.
Key specifications for 2233G449: Bore Nominal Diameter: 1.003 INCHES BOTH ENDS IN; Teeth Quantity: 9; Body Style: PLAIN, SOLID; Pitch Angle: 0.8699 DEGREES. 15 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.