The Support,limit Switch, cataloged under National Stock Number 1680-01-072-1731, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-01-072-1731 |
| Item Name | Support,limit Switch |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY,QQ-A-225/6 COMP 2024 TEMPER T4; ANODIZED,MIL-A-8625 TYPE 1; 5.430 IN. MIN,5.440 IN. MAX OD EXTERNAL FLANGE; 4.245 IN. MIN,4.255 IN. MAX ID EXTERNAL FLANGE,0.834 IN. MIN,0.854 IN. MAX LG EXTERNAL FLANGE;1.140 IN. MIN,1.170 IN. MAX O/A LG; 4.220 IN. MIN,4.250 IN. MAX OD INTERNAL FLANGE,4.072 IN. MIN,4.077 IN. MAX ID INTERNAL FLANGE; 4 HOLES 0.127 IN. MIN,0.137 IN. MAX DIA THROUGH INTERNAL FLANGE OUTER PERIPHERY,0.130 IN. MIN,0.180 IN. MAX DISTANCE FROM 1ST END TO HOLE CENTER; 2 THD HOLES THROUG H ONE WALL OF EXTERNAL FLANGE FACE LOCATED ON 2.500 IN. NOM BOLT CIRCLE DIA,NO. 6-32 UNC SERIES CL 2B THD; 1 HOLE 0.275 IN. MIN,0.285 IN. MAX DIA THROUGH EXTERNAL FLANGE FACE LOCATED ON 2.250 IN. NOM BOLT CIRCLE; 1 HOLE 0.150 IN. MIN,0.160 IN. MAX DIA THROUGH BOTTOM WALL OF EXTERNAL FLANGE ON 2.250 IN. NOM BOLT CIRCLE DIA,HOLE C0UNTERSUNK 95 MIN,1.05 IN. MAX DEG TO 0.270 IN MIN,0.285 IN. MAX DIA 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 |
|---|---|
| 42305E554 | 5/9 Secondary reference U.S. Government activity |
| 42305-554 | 3/9 Design control — primary reference Goodrich Corporation Dba Trw Lucas Aerospace |
NSN 1680-01-072-1731 is a Support,limit Switch, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
Key specifications for 1680-01-072-1731: General Characteristics Item Description: ALUMINUM ALLOY,QQ-A-225/6 COMP 2024 TEMPER T4; ANODIZED,MIL-A-8625 TYPE 1; 5.430 IN. MIN,5.440 IN. MAX OD EXTERNAL FLANGE; 4.245 IN. MIN,4.255 IN. MAX ID EXTERNAL FLANGE,0.834 IN. MIN,0.854 IN. MAX LG EXTERNAL FLANGE;1.140 IN. MIN,1.170 IN. MAX O/A LG; 4.220 IN. MIN,4.250 IN. MAX OD INTERNAL FLANGE,4.072 IN. MIN,4.077 IN. MAX ID INTERNAL FLANGE; 4 HOLES 0.127 IN. MIN,0.137 IN. MAX DIA THROUGH INTERNAL FLANGE OUTER PERIPHERY,0.130 IN. MIN,0.180 IN. MAX DISTANCE FROM 1ST END TO HOLE CENTER; 2 THD HOLES THROUG H ONE WALL OF EXTERNAL FLANGE FACE LOCATED ON 2.500 IN. NOM BOLT CIRCLE DIA,NO. 6-32 UNC SERIES CL 2B THD; 1 HOLE 0.275 IN. MIN,0.285 IN. MAX DIA THROUGH EXTERNAL FLANGE FACE LOCATED ON 2.250 IN. NOM BOLT CIRCLE; 1 HOLE 0.150 IN. MIN,0.160 IN. MAX DIA THROUGH BOTTOM WALL OF EXTERNAL FLANGE ON 2.250 IN. NOM BOLT CIRCLE DIA,HOLE C0UNTERSUNK 95 MIN,1.05 IN. MAX DEG TO 0.270 IN MIN,0.285 IN. MAX DIA IN. 1 specification is 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 1680-01-072-1731 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.