The Piston,shutoff,pres, cataloged under National Stock Number 1650-00-302-3112, 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 Pti Technologies Inc.. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-00-302-3112 |
| Primary Part Number | 52-10971 |
| Item Name | Piston,shutoff,pres |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Pti Technologies Inc. |
| Status | ACTIVE |
| FSC Application Data | AIRCRAFT HYDRAULIC SYSTEM |
| General Characteristics Item Description | ALUMINUM ALLOY,QQ-A-225/6,ALLOY 2024,TEMPER T351/T851,ANODIZE,MIL-A-8625,CLASS 1,TYPE 1,0.920 IN. LG,2.743-2.746IN. MAJOR OD,1.923-1.926 IN. MINOR OD,1.376-1.378 IN. ID 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 |
|---|---|
| 52-10971 PRIMARY | Pti Technologies Inc. (USA) |
| Reference | Meaning |
|---|---|
| 52-10971 | 5/9 Secondary reference U.S. Government activity |
NSN 1650-00-302-3112 is a Piston,shutoff,pres, manufactured by Pti Technologies Inc., classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-302-3112 has 1 manufacturer part number on file: 52-10971 (Pti Technologies Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5306-01-417-9857. Verify interchangeability with system specifications before substitution.
Key specifications for 52-10971: FSC Application Data: AIRCRAFT HYDRAULIC SYSTEM; General Characteristics Item Description: ALUMINUM ALLOY,QQ-A-225/6,ALLOY 2024,TEMPER T351/T851,ANODIZE,MIL-A-8625,CLASS 1,TYPE 1,0.920 IN. LG,2.743-2.746IN. MAJOR OD,1.923-1.926 IN. MINOR OD,1.376-1.378 IN. ID IN; End Item Identification: P/N 11-11213-5 MANIFOLD. 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.
NSN 1650-00-302-3112 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.