The Cap,valve, cataloged under National Stock Number 1650-01-188-7121, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-01-188-7121 |
| Item Name | Cap,valve |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 59110-3 | 5/1 Secondary reference Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations |
| 59110-3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1650-01-188-7121 is a Cap,valve, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
Key specifications for 1650-01-188-7121: Special Features: STEEL AMS 5658 CRES 15-5; PASSIVATED FINISH QQ-P-35; 0.890 IN. LG; 1ST END 0.750 IN. DIA; 0.165 IN. LG TO WRENCHING FLAT; HEX HEAD 1.000 IN.; FLANGE 1.111 IN. DIA; 0.275 IN. W; 2ND END 0.875-20 UNEF-3A IN. OD THRDS; 0.328 IN. W; CHAMFER 45.0 DEG BY 0.050 IN. W; 0.531 IN. ID; 0.750 IN. DEEP; COUNTERBORE 0.562 IN. ID; 0.500 IN. DEEP A; End Item Identification: AIRCRAFT KC135R. 0 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.