Valve, Check4820-01-540-8294

NSN 4820-01-540-8294 · NIIN 015408294 · Part number 1601-AC/1-216-32-156 8.0IN

W & O Supply Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 1QP40

Government record, cited

NSN 4820-01-540-8294 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-540-8294. Manufacturer of record part number: 1601-AC/1-216-32-156 8.0IN.

Also searched as 4820-01-540-8294 · 4820015408294 · NIIN 015408294 · 01-540-8294 · FSC 4820 Valves, Nonpowered · CAGE 1QP40 · 1601-AC/1-216-32-156 8.0IN

Nearby stock numbers ← 4820-01-540-8288 Disk, Rupturable · 4820-01-540-8298 Disk, Valve →

4820-01-540-8294 — Valves, Nonpowered

Features

Valve,check — FSC 4820
Flow Control Device: DISK
Connection Style: PLAIN (PIPE) ALL ENDS
Connection Type: UNTHREADED CARTRIDGE ALL ENDS
Style Designator: STRAIGHT THRU
Disk Loading Method: SPRING
Mounting Facility: WAFER
Media for Which Designed: OIL SINGLE RESPONSE

Identification

NSN: 4820-01-540-8294
NIIN: 015408294
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 1601-AC/1-216-32-156 8.0IN
Manufacturer: W & O Supply Inc

General Description

The Valve,check, cataloged under National Stock Number 4820-01-540-8294, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is W & O Supply Inc. Government technical data includes 11 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	4820-01-540-8294
Primary Part Number	1601-AC/1-216-32-156 8.0IN
Item Name	Valve,check
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	W & O Supply Inc
Status	ACTIVE
Flow Control Device	DISK
Connection Style	PLAIN (PIPE) ALL ENDS
Connection Type	UNTHREADED CARTRIDGE ALL ENDS
Style Designator	STRAIGHT THRU
Disk Loading Method	SPRING
Mounting Facility	WAFER
Media for Which Designed	OIL SINGLE RESPONSE
Material	STEEL BODY
Material	PLASTIC POLYTETRAFLUOROETHYLENE SEAT
Material	STEEL COMP 316 FLOW CONTROL DEVICE
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
1601-AC/1-216-32-156 8.0IN PRIMARY	W & O Supply 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 4820-01-540-8294?

NSN 4820-01-540-8294 is a Valve,check, manufactured by W & O Supply Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-540-8294?

NSN 4820-01-540-8294 has 1 manufacturer part number on file: 1601-AC/1-216-32-156 8.0IN (W & O Supply Inc).

What are the specifications of 1601-AC/1-216-32-156 8.0IN?

Key specifications for 1601-AC/1-216-32-156 8.0IN: Flow Control Device: DISK; Connection Style: PLAIN (PIPE) ALL ENDS; Connection Type: UNTHREADED CARTRIDGE ALL ENDS; Style Designator: STRAIGHT THRU. 11 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-540-8294 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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