The Valve,safety Relief, cataloged under National Stock Number 4820-01-443-8864, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Thermo Fisher Scientific (asheville) Llc Div Laboratory Products Division. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-443-8864 |
| Primary Part Number | 250052411 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Thermo Fisher Scientific (asheville) Llc Div Laboratory Products Division |
| 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 |
|---|---|
| 250052411 PRIMARY | Thermo Fisher Scientific (asheville) Llc Div Laboratory Products Division (USA) |
| Reference | Meaning |
|---|---|
| 250052411 | 5/9 Secondary reference Barnstead Thermolyne Corporation Dba Barnstead International Div Laboratory Equipment |
| LL-H47-2902 | 5/1 Secondary reference Naval Medical Material Support Command Detachment |
| REPAIR PART | 5/1 Secondary reference U.S. Government activity |
NSN 4820-01-443-8864 is a Valve,safety Relief, manufactured by Thermo Fisher Scientific (asheville) Llc Div Laboratory Products Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-443-8864 has 1 manufacturer part number on file: 250052411 (Thermo Fisher Scientific (asheville) Llc Div Laboratory Products Division).
Key specifications for 250052411: Special Features: USED ON STERILIZER, STEAM TABLETOP, MODEL HYDROCLAVE SC8. 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.