The Flange,retractable, cataloged under National Stock Number 1670-00-253-4761, is classified within Federal Supply Class 1670 (Parachutes; Aerial Pick up, Delivery, Recovery Systems; and Cargo Tie Down Equipment) of the Aircraft Components and Accessories group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1670-00-253-4761 |
| Item Name | Flange,retractable |
| FSC / FSG | 1670 / 16 — Parachutes; Aerial Pick up, Delivery, Recovery Systems; and Cargo Tie Down Equipment |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,CORROSION RESISTANT,AMS5355,2.880 IN. LG,1.375 IN. W,0.930 IN. H,RH,125 AA MICROINCH FINISH O/A 0.682 IN. MIN,0.692 IN. MAX FORK SPAN W,ONE 0.374 IN. MIN,0.381 IN. MAX DIA HOLE,100 DEG COUNTERSUNK TO 0.770 IN. DIA FIRST FORK ARM,3/8-24 UNF-3B THD SECOND FORK ARM,ONE 0.516 IN. DIA THROUGH HOLE LOCATED OPPOSITE END 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 |
|---|---|
| 11768-197-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1670-00-253-4761 is a Flange,retractable, classified under FSC 1670, Parachutes; Aerial Pick up, Delivery, Recovery Systems; and Cargo Tie Down Equipment. Status: active.
Key specifications for 1670-00-253-4761: General Characteristics Item Description: STEEL,CORROSION RESISTANT,AMS5355,2.880 IN. LG,1.375 IN. W,0.930 IN. H,RH,125 AA MICROINCH FINISH O/A 0.682 IN. MIN,0.692 IN. MAX FORK SPAN W,ONE 0.374 IN. MIN,0.381 IN. MAX DIA HOLE,100 DEG COUNTERSUNK TO 0.770 IN. DIA FIRST FORK ARM,3/8-24 UNF-3B THD SECOND FORK ARM,ONE 0.516 IN. DIA THROUGH HOLE LOCATED OPPOSITE END 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.