The Spindle,cylinder Assembly, cataloged under National Stock Number 1650-01-172-3540, 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 The Boeing Company Div Defense. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-01-172-3540 |
| Primary Part Number | 75A430731-2001 |
| Item Name | Spindle,cylinder Assembly |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| General Characteristics Item Description | CRES PER AMS5643; 0.670 IN. O/A H; 0.520 IN. O/A W; SHAFT SPLINED FOURTEEN TEETH 45.0 DEG PRESSURE ANGLE,0.1750 PITCH 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 |
| Part Number | Manufacturer |
|---|---|
| 75A430731-2001 | Safran Landing Systems Uk Ltd Div Safran Landing Systems Uk (GBR) |
| 75A430731-2001 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 75A430731-2001 | 5/9 Secondary reference Triumph Aerospace Operations Uk, Ltd. Div Staverton Site |
NSN 1650-01-172-3540 is a Spindle,cylinder Assembly, manufactured by The Boeing Company Div Defense, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-172-3540 has 2 manufacturer part numbers on file: 75A430731-2001 (Safran Landing Systems Uk Ltd Div Safran Landing Systems Uk), 75A430731-2001 (The Boeing Company Div Defense).
Key specifications for 75A430731-2001: General Characteristics Item Description: CRES PER AMS5643; 0.670 IN. O/A H; 0.520 IN. O/A W; SHAFT SPLINED FOURTEEN TEETH 45.0 DEG PRESSURE ANGLE,0.1750 PITCH DIA IN; End Item Identification: ACFT MODEL AV-8. 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 1650-01-172-3540 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.