The Piston and Plunger,, cataloged under National Stock Number 1650-00-321-5591, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-00-321-5591 |
| Item Name | Piston and Plunger, |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF FSCM 94641 PISTON 3151-118,PLUNGER 3151-033 |
| 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 |
| Reference | Meaning |
|---|---|
| 3151-109 | 3/2 Design control — primary reference U.S. Government activity |
| 3151-109 | 3/9 Design control — primary reference Woodward Hrt, Inc. Dba Woodward Hrt Inc |
NSN 1650-00-321-5591 is a Piston and Plunger,, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
Key specifications for 1650-00-321-5591: General Characteristics Item Description: CONSISTS OF FSCM 94641 PISTON 3151-118,PLUNGER 3151-033; End Item Identification: SERVOCYLINDER 1650-288-5263. 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 1650-00-321-5591 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.