The Coupling,actuator-Handwheel,valv, cataloged under National Stock Number 4820-01-256-2238, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Triumph Controls, Llc Dba Triumph Controls, Llc. Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-256-2238 |
| Primary Part Number | 57364-04 |
| Item Name | Coupling,actuator-Handwheel,valv |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Triumph Controls, Llc Dba Triumph Controls, Llc |
| Status | ACTIVE |
| Valve Type for Which Designed | RISING STEM |
| Connector End Design | FEMALE |
| Wheel Size for Which Designed | TO FIT VALVE HANDWHEEL 13 INCHES TO 14 INCHES IN |
| Connection Size | 5.380 INCHES IN |
| 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 |
|---|---|
| 57364-04 PRIMARY | Triumph Controls, Llc Dba Triumph Controls, Llc (USA) |
| RS4 | Triumph Controls, Llc Dba Triumph Controls, Llc (USA) |
| Reference | Meaning |
|---|---|
| 57364-4 | 3/9 Design control — primary reference Triumph Controls, Llc Dba Triumph Controls, Llc |
NSN 4820-01-256-2238 is a Coupling,actuator-Handwheel,valv, manufactured by Triumph Controls, Llc Dba Triumph Controls, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-256-2238 has 2 manufacturer part numbers on file: 57364-04 (Triumph Controls, Llc Dba Triumph Controls, Llc), RS4 (Triumph Controls, Llc Dba Triumph Controls, Llc).
1 possible match (shared part number, not a government interchangeability claim): 6605-01-560-8541. Verify interchangeability with system specifications before substitution.
Key specifications for 57364-04: Valve Type for Which Designed: RISING STEM; Connector End Design: FEMALE; Special Features: PROVIDED WITH ATTACHMENT HARDWARE; Wheel Size for Which Designed: TO FIT VALVE HANDWHEEL 13 INCHES TO 14 INCHES IN. 4 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.
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.