The Piston Assembly,hydraulic Brake,, cataloged under National Stock Number 1630-01-615-6953, is classified within Federal Supply Class 1630 (Aircraft Wheel and Brake Systems) of the Aircraft Components and Accessories group. The manufacturer of record is Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1630-01-615-6953 |
| Primary Part Number | 2580654-1 |
| Item Name | Piston Assembly,hydraulic Brake, |
| FSC / FSG | 1630 / 16 — Aircraft Wheel and Brake Systems |
| Manufacturer | Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 2580654-1 PRIMARY | Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems (USA) |
| 2580654-1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 2580654-1 | C/1 Advisory reference — outside the item-of-supply concept Goodrich Corporation |
| 2580654-1 | 5/9 Secondary reference Goodrich Corporation Div Advanced Structures Landing Systems |
NSN 1630-01-615-6953 is a Piston Assembly,hydraulic Brake,, manufactured by Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems, classified under FSC 1630, Aircraft Wheel and Brake Systems. Status: active.
NSN 1630-01-615-6953 has 2 manufacturer part numbers on file: 2580654-1 (Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems), 2580654-1 (Northrop Grumman Systems Corporation).
Key specifications for 2580654-1: Part Name Assigned by Controlling Agency: PISTON ASSEMBLY,HYDRAULIC BRAKE,AIRCRAFT. 0 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1630-01-615-6953 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.