The Valve,check, cataloged under National Stock Number 4820-01-588-4656, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Heil Trailer International, Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-588-4656 |
| Primary Part Number | 9941-1033 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Heil Trailer International, 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 |
|---|---|
| 9941-1033 PRIMARY | Heil Trailer International, Llc (USA) |
NSN 4820-01-588-4656 is a Valve,check, manufactured by Heil Trailer International, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-588-4656 has 1 manufacturer part number on file: 9941-1033 (Heil Trailer International, Llc).
Key specifications for 9941-1033: Part Name Assigned by Controlling Agency: VALVE,CHECK; End Item Identification: 2330-01-537-8217; SEMI-TRAILER REFUELER,5000 GALLON. 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.