The Piston,valve, cataloged under National Stock Number 4810-01-379-1221, is classified within Federal Supply Class 4810 (No Item Name Available) of the Valves group. The primary manufacturer of record is Triumph Actuation Systems - Valencia, Inc. Dba Triumph Actuation Systems - Valencia Inc Div Triumph Actuation Systems-Val. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-379-1221 |
| Primary Part Number | 20558 |
| Item Name | Piston,valve |
| FSC / FSG | 4810 / 48 — No Item Name Available |
| Manufacturer | Triumph Actuation Systems - Valencia, Inc. Dba Triumph Actuation Systems - Valencia Inc Div Triumph Actuation Systems-Val |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20558 PRIMARY | Triumph Actuation Systems - Valencia, Inc. Dba Triumph Actuation Systems - Valencia Inc Div Triumph Actuation Systems-Val (USA) |
NSN 4810-01-379-1221 is a Piston,valve, manufactured by Triumph Actuation Systems - Valencia, Inc. Dba Triumph Actuation Systems - Valencia Inc Div Triumph Actuation Systems-Val, classified under FSC 4810 (No Item Name Available). Status: active.
NSN 4810-01-379-1221 has 1 cross-referenced part number: 20558 (Triumph Actuation Systems - Valencia, Inc. Dba Triumph Actuation Systems - Valencia Inc Div Triumph Actuation Systems-Val).
There are 7 known substitutes for 4810-01-379-1221: 2915-00-122-6610, 3455-00-232-4215, 4820-00-289-0853 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20558: Special Features: DIMENSION IS OD 0.744 IN. MAX., 0.743 IN. MIN.; WAS OD 0.736 IN. MAX., 0.735 IN MIN; ECN INCREASED DIAMETER TO MEET PRESSURE SHUTTLE REQUIREMENTS IN; End Item Identification: WINGTIP/WINGLET INST; Criticality Code Justification: FEAT. 3 total characteristics are documented in the Federal Logistics Information System.