The Bell Crank, cataloged under National Stock Number 1680-01-063-0438, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 8 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 1680-01-063-0438 |
| Primary Part Number | 515-4674130 ITEM 8 |
| Item Name | Bell Crank |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 5.000 INCHES NOMINAL SECOND END IN |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 5.000 INCHES NOMINAL FIRST END IN |
| End Hole/ball Diameter | 1.000 INCHES NOMINAL SECOND END IN |
| End Hole/ball Diameter | 1.000 INCHES NOMINAL FIRST END IN |
| Bore Length | 7.648 INCHES MINIMUM AND 7.655 INCHES MAXIMUM IN |
| Style Designator | CLEVIS ENDS |
| Bore Diameter | 1.505 INCHES MINIMUM AND 1.507 INCHES MAXIMUM IN |
| Material | COPPER ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 515-4674130 ITEM 8 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 87552-0622 ITEM 8 | 3/2 Design control — primary reference U.S. Government activity |
| 87552-0622 | D/9 Drawing number reference only U.S. Government activity |
| 515-4674130 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 1680-01-063-0438 is a Bell Crank, manufactured by Naval Sea Systems Command, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-063-0438 has 1 manufacturer part number on file: 515-4674130 ITEM 8 (Naval Sea Systems Command).
3 possible matches (shared part number, not a government interchangeability claim): 3040-01-064-7275, 3040-01-065-7047, 3040-01-211-5561. Verify interchangeability with system specifications before substitution.
Key specifications for 515-4674130 ITEM 8: Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 5.000 INCHES NOMINAL SECOND END IN; Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 5.000 INCHES NOMINAL FIRST END IN; End Hole/ball Diameter: 1.000 INCHES NOMINAL SECOND END IN; End Hole/ball Diameter: 1.000 INCHES NOMINAL FIRST END IN. 8 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 1680-01-063-0438 has DEMIL Code Q. 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.