Valve, Pressure Equalizing, Gaseou4820-01-676-4942

NSN 4820-01-676-4942 · NIIN 016764942 · Part number A18356-250

Mueller Brass Co. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 41947

Government record, cited

NSN 4820-01-676-4942 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-676-4942. Manufacturer of record part number: A18356-250.

Also searched as 4820-01-676-4942 · 4820016764942 · NIIN 016764942 · 01-676-4942 · FSC 4820 Valves, Nonpowered · CAGE 41947 · A18356-250

Nearby stock numbers ← 4820-01-676-4887 Valve, Safety Relief · 4820-01-676-5044 Gear Operator, Valve →

4820-01-676-4942 — Valves, Nonpowered

Features

Valve,pressure Equalizing,gaseou — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Mueller Brass Co.

Identification

NSN: 4820-01-676-4942
NIIN: 016764942
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: A18356-250
Manufacturer: Mueller Brass Co.

General Description

The Valve,pressure Equalizing,gaseou, cataloged under National Stock Number 4820-01-676-4942, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Mueller Brass Co.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-676-4942
Primary Part Number	A18356-250
Item Name	Valve,pressure Equalizing,gaseou
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Mueller Brass Co.
Status	ACTIVE

Lifecycle & Compliance

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

Cross-Reference Index

Part Number	Manufacturer
A18356-250 PRIMARY	Mueller Brass Co. (USA)

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 4820-01-676-4942?

NSN 4820-01-676-4942 is a Valve,pressure Equalizing,gaseou, manufactured by Mueller Brass Co., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-676-4942?

NSN 4820-01-676-4942 has 1 manufacturer part number on file: A18356-250 (Mueller Brass Co.).

What are the specifications of A18356-250?

Key specifications for A18356-250: End Item Identification: AIR CONDITIONING PLANT;AMC-654MQ;5V854. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-676-4942 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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