The Bell Crank, cataloged under National Stock Number 3040-01-476-9922, 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 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-476-9922 |
| Primary Part Number | 254-7015355PN3 |
| Item Name | Bell Crank |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 1.375 INCHES NOMINAL FIRST END IN |
| End Hole/ball Diameter | 0.2500 INCHES MINIMUM AND 0.2505 INCHES MAXIMUM FIRST END IN |
| Bore Length | 0.500 INCHES NOMINAL IN |
| Material Document and Classification | QQ-B-637 AL 464 HALF HARD FED SPEC SINGLE MATERIAL RESPONSE |
| Bore Diameter | 0.436 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 254-7015355PN3 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 7015355 | D/9 Drawing number reference only Naval Sea Systems Command |
| H749-3901 3 | 5/2 Secondary reference U.S. Government activity |
NSN 3040-01-476-9922 is a Bell Crank, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-476-9922 has 1 manufacturer part number on file: 254-7015355PN3 (Naval Sea Systems Command).
Key specifications for 254-7015355PN3: Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 1.375 INCHES NOMINAL FIRST END IN; End Hole/ball Diameter: 0.2500 INCHES MINIMUM AND 0.2505 INCHES MAXIMUM FIRST END IN; Bore Length: 0.500 INCHES NOMINAL IN; Material Document and Classification: QQ-B-637 AL 464 HALF HARD FED SPEC SINGLE MATERIAL RESPONSE. 6 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.