The Piston,actuator, cataloged under National Stock Number 3010-01-191-6565, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Portland Valve Llc. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3010-01-191-6565 |
| Primary Part Number | V-4479 |
| Item Name | Piston,actuator |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Portland Valve Llc |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,4150 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| V-4479 ITEM 4 | Portland Valve Llc (USA) |
| V-4479 PRIMARY | Portland Valve Llc (USA) |
| Reference | Meaning |
|---|---|
| V-6587 PIECE 4 | C/1 Advisory reference — outside the item-of-supply concept Portland Valve Llc |
| V-6683 | D/9 Drawing number reference only Portland Valve Llc |
NSN 3010-01-191-6565 is a Piston,actuator, manufactured by Portland Valve Llc, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-191-6565 has 2 manufacturer part numbers on file: V-4479 ITEM 4 (Portland Valve Llc), V-4479 (Portland Valve Llc).
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-191-6566, 3040-01-191-6567. Verify interchangeability with system specifications before substitution.
Key specifications for V-4479: General Characteristics Item Description: STEEL,4150. 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.
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.