PartsTable TECHNICAL DATA SHEET

NSN 4820-01-315-8166Government record, cited

Valve, Safety Relief4820-01-315-8166

NSN 4820-01-315-8166 · NIIN 013158166 · Part number VAL685T2

Dunham-Bush, Inc. Dba Dunham-Bush Inc Commercial & Industrial · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 24999

Government record, cited

NSN 4820-01-315-8166 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-315-8166. Manufacturer of record part number: VAL685T2.

Also searched as 4820-01-315-8166 · 4820013158166 · NIIN 013158166 · 01-315-8166 · FSC 4820 Valves, Nonpowered · CAGE 24999 · VAL685T2 · VAL6852T

Nearby stock numbers ← 4820-01-315-8165 Valve, Angle · 4820-01-315-8167 Valve, Expansion →

4820-01-315-8166 — Valves, Nonpowered

Features

Valve,safety Relief — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: Dunham-Bush, Inc. Dba Dunham-Bush Inc Commercial & Industrial

Identification

NSN: 4820-01-315-8166
NIIN: 013158166
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: VAL685T2
Manufacturer: Dunham-Bush, Inc. Dba Dunham-Bush Inc Commercial & Industrial

General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-315-8166, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dunham-Bush, Inc. Dba Dunham-Bush Inc Commercial & Industrial. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Valve,safety Relief
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Hartford Compressors Inc (CAGE 10119); Dunham-Bush, Inc. Dba Dunham-Bush Inc Commercial & Industrial (CAGE 24999)

Technical Specifications

Parameter	Value
NSN	4820-01-315-8166
Primary Part Number	VAL685T2
Item Name	Valve,safety Relief
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Dunham-Bush, Inc. Dba Dunham-Bush Inc Commercial & Industrial
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)

Cross-Reference Index

Part Number	Manufacturer
VAL685T2	Hartford Compressors Inc (USA)
VAL685T2 PRIMARY	Dunham-Bush, Inc. Dba Dunham-Bush Inc Commercial & Industrial (USA)

Reference documents

Reference	Meaning
VAL6852T	C/1 Advisory reference — outside the item-of-supply concept General Electric Co Consumer Products Group

No interchangeability data on file.

Other items in FSC 4820 — Valves, Nonpowered

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4820-00-000-0097

4820-00-000-0097 · Item name not on file

4820-00-001-0010

VALVE,ROTARY,SELECTOR

4820-00-001-0020

4820-00-001-0020 · Item name not on file

4820-00-001-0021

4820-00-001-0021 · Item name not on file

4820-00-001-0032

4820-00-001-0032 · Item name not on file

4820-00-001-0037

VALVE,SAFETY RELIEF

4820-00-001-0042

4820-00-001-0042 · Item name not on file

4820-00-001-1230

4820-00-001-1230 · Item name not on file

Frequently Asked Questions

What is NSN 4820-01-315-8166?

NSN 4820-01-315-8166 is a Valve,safety Relief, manufactured by Dunham-Bush, Inc. Dba Dunham-Bush Inc Commercial & Industrial, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-315-8166?

NSN 4820-01-315-8166 has 2 manufacturer part numbers on file: VAL685T2 (Hartford Compressors Inc), VAL685T2 (Dunham-Bush, Inc. Dba Dunham-Bush Inc Commercial & Industrial).

Is NSN 4820-01-315-8166 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

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.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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