The Seat,valve,check, cataloged under National Stock Number 1650-01-164-5949, 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 Legacy Am&m. Government technical data includes 2 specifications, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-01-164-5949 |
| Primary Part Number | L5871089-003 |
| Item Name | Seat,valve,check |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| FSC Application Data | ACTUATOR ASSEMBLY,HYDRAULIC |
| General Characteristics Item Description | STEEL QQ-S-763 CLASS 440C CONDITION A; 0.700 IN. LG; 0.420 IN. OD; 1ST END 0.156 IN. ID; 0.300 IN. DEEP; 2ND END 0.312 IN. ID; 0.400 IN. DEEP IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| L5871089-003 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
| L5871089-003 | Woodward Hrt, Inc. Dba Woodward Hrt Inc (USA) |
NSN 1650-01-164-5949 is a Seat,valve,check, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-164-5949 has 2 manufacturer part numbers on file: L5871089-003 (The Boeing Company Div Legacy Am&m), L5871089-003 (Woodward Hrt, Inc. Dba Woodward Hrt Inc).
Key specifications for L5871089-003: FSC Application Data: ACTUATOR ASSEMBLY,HYDRAULIC; General Characteristics Item Description: STEEL QQ-S-763 CLASS 440C CONDITION A; 0.700 IN. LG; 0.420 IN. OD; 1ST END 0.156 IN. ID; 0.300 IN. DEEP; 2ND END 0.312 IN. ID; 0.400 IN. DEEP IN; End Item Identification: AIRCRAFT B-1B. 2 specifications are 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.