The Diaphragm,actuator Valve,special, cataloged under National Stock Number 4820-01-574-8526, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Defense & Development Enterprises Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-574-8526 |
| Primary Part Number | 102961 |
| Item Name | Diaphragm,actuator Valve,special |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Defense & Development Enterprises Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| 102961 | Defense & Development Enterprises Llc (USA) |
| Reference | Meaning |
|---|---|
| 102961 | 3/9 Design control — primary reference Triumph Thermal Systems - Maryland, Inc. |
NSN 4820-01-574-8526 is a Diaphragm,actuator Valve,special, manufactured by Defense & Development Enterprises Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-574-8526 has 1 manufacturer part number on file: 102961 (Defense & Development Enterprises Llc).
Key specifications for 102961: Special Features: U/O NSN 4820-00-225-0934; End Item Identification: C-130 AIRCRAFT; T.O.9P11-2-4. 0 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.