The Collar,locking, cataloged under National Stock Number 1650-01-145-2558, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System 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1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1650-01-145-2558 |
| Item Name | Collar,locking |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY PER QQ-A-225/9 OR QQ-A-200/11; 0.750 IN. OD,STEPPED TO 0.385 IN. OD; 0.292 IN. MIN,0.293 IN. MAX ID,0.312 IN. NOM DIA OF 36 SERRATIONS; 0.325 IN. O/A H IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 268122-1 | 3/2 Design control — primary reference U.S. Government activity |
| 268122-1 | 5/1 Secondary reference Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations |
NSN 1650-01-145-2558 is a Collar,locking, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
Key specifications for 1650-01-145-2558: General Characteristics Item Description: ALUMINUM ALLOY PER QQ-A-225/9 OR QQ-A-200/11; 0.750 IN. OD,STEPPED TO 0.385 IN. OD; 0.292 IN. MIN,0.293 IN. MAX ID,0.312 IN. NOM DIA OF 36 SERRATIONS; 0.325 IN. O/A H IN; End Item Identification: AIRCRAFT MODEL F-18. 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 1650-01-145-2558 has DEMIL Code B. 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.