The Disk,valve, cataloged under National Stock Number 1650-01-166-5414, 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 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-01-166-5414 |
| Primary Part Number | L5871088-003 |
| Item Name | Disk,valve |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| Shank Diameter | 0.075 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN |
| Flange Seat to Disk End Height | 0.637 INCHES MINIMUM AND 0.642 INCHES MAXIMUM IN |
| Criticality Code Justification | AGAV |
| Style Designator | POPPET |
| Material Document and Classification | QQ-S-763, CLASS 440C, COND A FED SPEC SINGLE MATERIAL RESPONSE |
| Tip Diameter | 0.062 INCHES NOMINAL IN |
| Seat Angle | 45.0 DEGREES NOMINAL |
| Under Flange Height | 0.236 INCHES NOMINAL IN |
| Media for Which Designed | HYDRAULIC FLUID |
| Material | STEEL COMP 440C |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| L5871088-003 | Woodward Hrt, Inc. Dba Woodward Hrt Inc (USA) |
| L5871088-003 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
| Reference | Meaning |
|---|---|
| L5871088-003 | 5/2 Secondary reference U.S. Government activity |
NSN 1650-01-166-5414 is a Disk,valve, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-166-5414 has 2 manufacturer part numbers on file: L5871088-003 (Woodward Hrt, Inc. Dba Woodward Hrt Inc), L5871088-003 (The Boeing Company Div Legacy Am&m).
Key specifications for L5871088-003: Shank Diameter: 0.075 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN; Flange Seat to Disk End Height: 0.637 INCHES MINIMUM AND 0.642 INCHES MAXIMUM IN; Overall Height: 0.937 INCHES MINIMUM AND 0.942 INCHES MAXIMUM IN; Criticality Code Justification: AGAV. 10 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.