The Flange,mounting,boom Support, cataloged under National Stock Number 1680-01-071-0177, 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1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1680-01-071-0177 |
| Item Name | Flange,mounting,boom Support |
| 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 FINISH,MIL-A-8625 TYPE 1 CL 1; 1.485 IN. MIN,1.515 IN. MAX O/A LG; 1ST END FLANGED,5.240 IN. MIN,5.250 IN. MAX OD FLANGE,0.090 IN. MIN,0.095 IN. MAX THK FLANGE; 3 HOLES 0.138 IN. MIN,0.144 IN. MAX DIA THROUGH FLANGE ON 4.750 IN. NOM BOLT CIRCLE DIA,HOLES COUNTERSUNK 99 MIN,101 MAX DEG BY 0.250 IN. MIN,0.260 IN. MAX DIA; 2ND END PLAIN,4.065 IN. MIN,4.070 IN. MAX OD BODY; 3.930 IN. MIN,3.940 IN. MAX ID BODY; 4 HOLES 0.166 IN. MIN,0.169 IN. MAX DIA THROUGH BODY,0.125 IN. MIN,0.155 IN. MAX DISTANCE FROM 2ND END TO HOLE CENTERS IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 42305E535 | 5/9 Secondary reference U.S. Government activity |
| 42305E535 | 3/9 Design control — primary reference Goodrich Corporation Dba Trw Lucas Aerospace |
NSN 1680-01-071-0177 is a Flange,mounting,boom Support, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
Key specifications for 1680-01-071-0177: General Characteristics Item Description: ALUMINUM ALLOY,QQ-A-225/6 COMP 2024 TEMPER T4; ANODIZED FINISH,MIL-A-8625 TYPE 1 CL 1; 1.485 IN. MIN,1.515 IN. MAX O/A LG; 1ST END FLANGED,5.240 IN. MIN,5.250 IN. MAX OD FLANGE,0.090 IN. MIN,0.095 IN. MAX THK FLANGE; 3 HOLES 0.138 IN. MIN,0.144 IN. MAX DIA THROUGH FLANGE ON 4.750 IN. NOM BOLT CIRCLE DIA,HOLES COUNTERSUNK 99 MIN,101 MAX DEG BY 0.250 IN. MIN,0.260 IN. MAX DIA; 2ND END PLAIN,4.065 IN. MIN,4.070 IN. MAX OD BODY; 3.930 IN. MIN,3.940 IN. MAX ID BODY; 4 HOLES 0.166 IN. MIN,0.169 IN. MAX DIA THROUGH BODY,0.125 IN. MIN,0.155 IN. MAX DISTANCE FROM 2ND END TO HOLE CENTERS 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.
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.