The Crank Assembly,bell, cataloged under National Stock Number 1680-01-364-4094, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-01-364-4094 |
| Item Name | Crank Assembly,bell |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Status | ACTIVE |
| FSC Application Data | UPLOCK ASSY,NOSE LANDING GEAR |
| General Characteristics Item Description | CRES BAR ALLOY PH13-8M0; PER AMS 5629; 2.250 IN. CENTER TO CENTER DISTANCE BETWEEN FULCRUM AND 1ST END ARM END HOLE; 0.375 IN. 1ST ARM END RADIUS; 2.745 IN. CENTER TO CENTER DISTANCE BETWEEN FULCRUM AND 2ND ARM END HOLE; 0.440 IN. 2ND ARM END RADIUS; 0.437 IN. MIN TO 0.438 IN. MAX 1ST ARM END HOLE DIA; 0.500 IN. MIN TO 0.501 IN. MAX 2ND ARM END HOLE DIA; 4.976 IN. 1ST ARM THICKNESS; 0.500 IN. 1ST ARM SLOT WIDTH; 0.666 IN. 2ND ARM HORIZONTAL SLOT WIDTH; 0.870 IN. 1ST ARM END THICKNESS; 1.042 IN. 2ND END THICKNESS; FULCRUM BORE PROVIDED; BORE DIA 0.875 IN. IN |
| 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 |
| Reference | Meaning |
|---|---|
| X9241585-10 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1680-01-364-4094 is a Crank Assembly,bell, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
Key specifications for 1680-01-364-4094: FSC Application Data: UPLOCK ASSY,NOSE LANDING GEAR; General Characteristics Item Description: CRES BAR ALLOY PH13-8M0; PER AMS 5629; 2.250 IN. CENTER TO CENTER DISTANCE BETWEEN FULCRUM AND 1ST END ARM END HOLE; 0.375 IN. 1ST ARM END RADIUS; 2.745 IN. CENTER TO CENTER DISTANCE BETWEEN FULCRUM AND 2ND ARM END HOLE; 0.440 IN. 2ND ARM END RADIUS; 0.437 IN. MIN TO 0.438 IN. MAX 1ST ARM END HOLE DIA; 0.500 IN. MIN TO 0.501 IN. MAX 2ND ARM END HOLE DIA; 4.976 IN. 1ST ARM THICKNESS; 0.500 IN. 1ST ARM SLOT WIDTH; 0.666 IN. 2ND ARM HORIZONTAL SLOT WIDTH; 0.870 IN. 1ST ARM END THICKNESS; 1.042 IN. 2ND END THICKNESS; FULCRUM BORE PROVIDED; BORE DIA 0.875 IN. IN; Special Features: INCLUDES 1 BUSHING; HEAT TREAT TO COND H1000; PER MIL-H-6875; End Item Identification: B-1B AIRCRAFT. 2 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 1680-01-364-4094 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.