The Retainer,ball,piston, cataloged under National Stock Number 1650-00-970-9975, 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 Northrop Grumman Systems Corporation. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-00-970-9975 |
| Primary Part Number | 128HM10165-1 |
| Item Name | Retainer,ball,piston |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | CRES,QQ-S-763,CLASS 10,2.376 IN. OD,0.812 IN. THK; 6 HOLES 0.187 IN. DIA EQUALLY SPACED,0.531 FROM BOTTOM TO CENTER OF HOLES,2.195 IN. OF CENTER HOLE TO A DEPTH OF 5/16 IN.,2.010 IN. DIA ON OTHER END 0.250 IN. DEEP 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 |
|---|---|
| 128HM10165-1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 128HM10165-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 1650-00-970-9975 is a Retainer,ball,piston, manufactured by Northrop Grumman Systems Corporation, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-970-9975 has 1 manufacturer part number on file: 128HM10165-1 (Northrop Grumman Systems Corporation).
Key specifications for 128HM10165-1: General Characteristics Item Description: CRES,QQ-S-763,CLASS 10,2.376 IN. OD,0.812 IN. THK; 6 HOLES 0.187 IN. DIA EQUALLY SPACED,0.531 FROM BOTTOM TO CENTER OF HOLES,2.195 IN. OF CENTER HOLE TO A DEPTH OF 5/16 IN.,2.010 IN. DIA ON OTHER END 0.250 IN. DEEP IN. 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 1650-00-970-9975 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.