The Valve,safety Relief, cataloged under National Stock Number 4820-01-270-9560, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Carleton Technologies Inc Div Tampa Facility. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-270-9560 |
| Primary Part Number | 2850-0030-31 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Carleton Technologies Inc Div Tampa Facility |
| Status | ACTIVE |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Material | PLASTIC SEAT |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 2850-0030-31 PRIMARY | Carleton Technologies Inc Div Tampa Facility (USA) |
| Reference | Meaning |
|---|---|
| 2850-0030-31 | 5/9 Secondary reference Mission Systems Orchard Park Inc |
| 2850-0030-31 | 5/9 Secondary reference Spectrum Scientific Corp |
NSN 4820-01-270-9560 is a Valve,safety Relief, manufactured by Carleton Technologies Inc Div Tampa Facility, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-270-9560 has 1 manufacturer part number on file: 2850-0030-31 (Carleton Technologies Inc Div Tampa Facility).
Key specifications for 2850-0030-31: Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE; Material: PLASTIC SEAT; Valve Operation Method: AUTOMATIC. 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.