The Gearshaft,bevel, cataloged under National Stock Number 3040-01-446-7620, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-446-7620 |
| Primary Part Number | 123-4403536 PART 2 |
| Item Name | Gearshaft,bevel |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL |
| Shaft Largest Diameter | 1.750 INCHES NOMINAL IN |
| Shaft End Size | 0.875 INCHES IN |
| Teeth Quantity | 16 |
| Pitch Angle | 29.1333 DEGREES |
| Diametral Pitch | 8 |
| Teeth Type | STRAIGHT |
| Gear Outside Diameter | 2.179 INCHES NOMINAL IN |
| Gear Material | STEEL |
| Shaft Length | 9.626 INCHES NOMINAL IN |
| Shaft End Type | THREADED EXTERNAL |
| Gear Location on Shaft | ON END OF SHAFT |
| Pressure Angle | 20.0000 DEGREES |
| Face Width | 0.875 INCHES NOMINAL 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 |
|---|---|
| 123-4403535 PART 8 | Naval Sea Systems Command (USA) |
| 123-4403535 PART 8 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 123-4403536 PART 2 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| H600-1502-80 PART 2 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 4403535 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| H600-1502-79 PART 8 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 4403535 | D/9 Drawing number reference only Naval Sea Systems Command |
| 4403536 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-446-7620 is a Gearshaft,bevel, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-446-7620 has 3 manufacturer part numbers on file: 123-4403535 PART 8 (Naval Sea Systems Command), 123-4403535 PART 8 (Huntington Ingalls Inc Div Newport News Shipbuilding), 123-4403536 PART 2 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 3020-01-446-7786, 3020-01-446-7820. Verify interchangeability with system specifications before substitution.
Key specifications for 123-4403536 PART 2: Shaft Type: SHOULDERED; Shaft Material: STEEL; Shaft Largest Diameter: 1.750 INCHES NOMINAL IN; Shaft End Size: 0.875 INCHES IN. 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.