The Piston-Stop,hydraulic Motor, cataloged under National Stock Number 6115-00-288-5559, is classified within Federal Supply Class 6115 (Generators and Generator Sets, Electrical) of the Electric Wire, Power, and Distribution Equipment group. The manufacturer of record is Parker-Hannifin Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6115-00-288-5559 |
| Primary Part Number | 77621 |
| Item Name | Piston-Stop,hydraulic Motor |
| FSC / FSG | 6115 / 61 — Generators and Generator Sets, Electrical |
| Manufacturer | Parker-Hannifin Corporation |
| Status | ACTIVE |
| FSC Application Data | F-15 ACFT HYD SYSTEM |
| General Characteristics Item Description | 0.250 IN. DIA,0.335 IN. LG IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 77621 PRIMARY | Parker-Hannifin Corporation (USA) |
| Reference | Meaning |
|---|---|
| 77621 | 5/9 Secondary reference U.S. Government activity |
NSN 6115-00-288-5559 is a Piston-Stop,hydraulic Motor, manufactured by Parker-Hannifin Corporation, classified under FSC 6115, Generators and Generator Sets, Electrical. Status: active.
NSN 6115-00-288-5559 has 1 manufacturer part number on file: 77621 (Parker-Hannifin Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5120-01-465-5984. Verify interchangeability with system specifications before substitution.
Key specifications for 77621: FSC Application Data: F-15 ACFT HYD SYSTEM; General Characteristics Item Description: 0.250 IN. DIA,0.335 IN. LG IN; End Item Identification: P/N 63036-06 HYD MOTOR. 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 6115-00-288-5559 has DEMIL Code B. 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.