The Valve,safety Relief, cataloged under National Stock Number 4820-01-394-3755, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Tr Engineering, Inc Div Tr Engineering Incorporated. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 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 | 4820-01-394-3755 |
| Primary Part Number | 750018 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Tr Engineering, Inc Div Tr Engineering Incorporated |
| 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 |
|---|---|
| 750018 PRIMARY | Tr Engineering, Inc Div Tr Engineering Incorporated (USA) |
NSN 4820-01-394-3755 is a Valve,safety Relief, manufactured by Tr Engineering, Inc Div Tr Engineering Incorporated, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-394-3755 has 1 manufacturer part number on file: 750018 (Tr Engineering, Inc Div Tr Engineering Incorporated).
1 possible match (shared part number, not a government interchangeability claim): 6505-01-705-7393. Verify interchangeability with system specifications before substitution.
Key specifications for 750018: End Item Identification: 1730013016240. 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.