Valve, Check4820-01-559-4743

NSN 4820-01-559-4743 · NIIN 015594743 · Part number 8156 2.50IN

Warren Alloy Valve and Fitting Co Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 095Y7

Government record, cited

NSN 4820-01-559-4743 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-559-4743. Manufacturer of record part number: 8156 2.50IN.

Also searched as 4820-01-559-4743 · 4820015594743 · NIIN 015594743 · 01-559-4743 · FSC 4820 Valves, Nonpowered · CAGE 095Y7 · 8156 2.50IN

Nearby stock numbers ← 4820-01-559-4732 Valve, Check · 4820-01-559-4754 Valve, Check →

4820-01-559-4743 — Valves, Nonpowered

Features

Valve,check — FSC 4820
Style Designator: STRAIGHT THRU FLANGED ENDS
Material Document and Classification: ASTM A351 CF8M ASSN STD SINGLE MATERIAL RESPONSE BODY
Valve Size: 2.500 INCHES IN
Face to Face Distance: 2.640 INCHES IN
Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE
Material: STEEL UNS J92900 BODY
Valve Operation Method: AUTOMATIC

Identification

NSN: 4820-01-559-4743
NIIN: 015594743
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 8156 2.50IN
Manufacturer: Warren Alloy Valve and Fitting Co Inc

General Description

The Valve,check, cataloged under National Stock Number 4820-01-559-4743, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Warren Alloy Valve and Fitting Co Inc. Government technical data includes 7 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. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-559-4743
Primary Part Number	8156 2.50IN
Item Name	Valve,check
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Warren Alloy Valve and Fitting Co Inc
Status	ACTIVE
Style Designator	STRAIGHT THRU FLANGED ENDS
Material Document and Classification	ASTM A351 CF8M ASSN STD SINGLE MATERIAL RESPONSE BODY
Valve Size	2.500 INCHES IN
Face to Face Distance	2.640 INCHES IN
Media for Which Designed	WATER-OIL-GAS SINGLE RESPONSE
Material	STEEL UNS J92900 BODY
Valve Operation Method	AUTOMATIC

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
8156 2.50IN PRIMARY	Warren Alloy Valve and Fitting Co Inc (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 4820-01-559-4743?

NSN 4820-01-559-4743 is a Valve,check, manufactured by Warren Alloy Valve and Fitting Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-559-4743?

NSN 4820-01-559-4743 has 1 manufacturer part number on file: 8156 2.50IN (Warren Alloy Valve and Fitting Co Inc).

What are the specifications of 8156 2.50IN?

Key specifications for 8156 2.50IN: Style Designator: STRAIGHT THRU FLANGED ENDS; Material Document and Classification: ASTM A351 CF8M ASSN STD SINGLE MATERIAL RESPONSE BODY; Valve Size: 2.500 INCHES IN; Special Features: APPLICATION: JP5; END CONNECTIONS: CROSS BOLTED WAFER; CV VALUE 83.2 GPM. 7 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-559-4743 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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