The Fitting,cylinder, cataloged under National Stock Number 1650-00-535-5285, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. The manufacturer of record is Kitco Llc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-00-535-5285 |
| Primary Part Number | 2558377 |
| Item Name | Fitting,cylinder |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Kitco Llc |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM,QQ-A-268,2024-T4; 0.875 IN. LG; HEX-SHAPE; 0.437 IN. ACROSS FLATS; THD INTERNALLY 5/16-24 UNF-3B PER MIL-S-7742; ONE 0.125 IN. DIA HOLE THRU ONE WALL ONLY 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 |
| Part Number | Manufacturer |
|---|---|
| 2558377 | Kitco Llc (USA) |
| 2558377 | Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company (USA) |
| Reference | Meaning |
|---|---|
| 2558377 | 5/9 Secondary reference The Boeing Company |
| 2558377 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1650-00-535-5285 is a Fitting,cylinder, manufactured by Kitco Llc, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-535-5285 has 2 manufacturer part numbers on file: 2558377 (Kitco Llc), 2558377 (Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company).
Key specifications for 2558377: General Characteristics Item Description: ALUMINUM,QQ-A-268,2024-T4; 0.875 IN. LG; HEX-SHAPE; 0.437 IN. ACROSS FLATS; THD INTERNALLY 5/16-24 UNF-3B PER MIL-S-7742; ONE 0.125 IN. DIA HOLE THRU ONE WALL ONLY 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 1650-00-535-5285 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.