The Accumulator,hydraulic, cataloged under National Stock Number 1650-01-065-8707, 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 9 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-01-065-8707 |
| Primary Part Number | 128SCH137-7 |
| Item Name | Accumulator,hydraulic |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Bleeder Opening | NOT INCLUDED |
| Overall Diameter | 3.188 INCHES MAXIMUM IN |
| Port Screw Thread Diameter | 0.500 INCHES NOMINAL IN |
| Port Screw Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Shape | CYLINDRICAL |
| Operating Pressure | 3000.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Port Screw Thread Quantity Per Inch | 20.000 |
| Separator Type | PISTON |
| Thread Class | 3B |
| 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 |
|---|---|
| 128SCH137-7 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 128SCH137 | 7/9 Vendor item drawing reference Northrop Grumman Systems Corporation |
| 128SCH137 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
| 60092-5 | 3/9 Design control — primary reference U.S. Government activity |
| 128SCH137-7 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 1650-01-065-8707 is a Accumulator,hydraulic, manufactured by Northrop Grumman Systems Corporation, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-065-8707 has 1 manufacturer part number on file: 128SCH137-7 (Northrop Grumman Systems Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 5915-01-109-8960, 1005-01-439-9656. Verify interchangeability with system specifications before substitution.
Key specifications for 128SCH137-7: Bleeder Opening: NOT INCLUDED; Overall Diameter: 3.188 INCHES MAXIMUM IN; Port Screw Thread Diameter: 0.500 INCHES NOMINAL IN; Port Screw Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF). 9 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 1650-01-065-8707 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.