The Valve,check, cataloged under National Stock Number 4820-01-659-2505, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Trident Emergency Products, Llc. Government technical data includes 3 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-659-2505 |
| Primary Part Number | 30.043.0 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Trident Emergency Products, Llc |
| Status | ACTIVE |
| Nominal Length | 6.77 INCHES ALL ENDS IN |
| Nominal Outside Diameter | 2.375 INCHES ALL ENDS IN |
| Material | COPPER ALLOY BODY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4820-01-659-2505 is a Valve,check, manufactured by Trident Emergency Products, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-659-2505 has 2 manufacturer part numbers on file: 30.043.0 (Trident Emergency Products, Llc), 3930319 (Oshkosh Defense Llc).
Key specifications for 30.043.0: Nominal Length: 6.77 INCHES ALL ENDS IN; Nominal Outside Diameter: 2.375 INCHES ALL ENDS IN; Part Name Assigned by Controlling Agency: VALVE, FOAM METERING, 2.00 SHORT; End Item Identification: 4210-01-622-0440. 3 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.