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NSN 4820-01-366-9945Government record, cited

Valve, Check4820-01-366-9945

NSN 4820-01-366-9945 · NIIN 013669945

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-366-9945 · 4820013669945 · NIIN 013669945 · 01-366-9945 · FSC 4820 Valves, Nonpowered

Nearby stock numbers ← 4820-01-366-9944 · 4820-01-366-9946 Valve, Check →

4820-01-366-9945 — Valves, Nonpowered

Features

Valve,check — FSC 4820
Flow Control Device: DISK
Mounting Position: HORIZONTAL OR VERTICAL
Style Designator: STRAIGHT THRU FLANGED ENDS
Valve Size: 8.000 INCHES IN
Maximum Operating Temp: 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
Mounting Facility: WAFER
Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE

Identification

NSN: 4820-01-366-9945
NIIN: 013669945
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Valve,check, cataloged under National Stock Number 4820-01-366-9945, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-366-9945
Item Name	Valve,check
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Flow Control Device	DISK
Mounting Position	HORIZONTAL OR VERTICAL
Style Designator	STRAIGHT THRU FLANGED ENDS
Valve Size	8.000 INCHES IN
Maximum Operating Temp	250.0 FAHRENHEIT SINGLE RESPONSE DEGF
Mounting Facility	WAFER
Media for Which Designed	WATER-OIL-GAS SINGLE RESPONSE
Material	RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
Material	COPPER ALLOY 952 FLOW CONTROL DEVICE
Material	COPPER ALLOY 952 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

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
8-A-150-ZZNMF-B3/4	3/9 Design control — primary reference Mcc Holdings, Inc. Dba Crane Valve North America Div Crane Chempharma & Energy

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 4820-01-366-9945?

NSN 4820-01-366-9945 is a Valve,check, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-366-9945?

Key specifications for 4820-01-366-9945: Flow Control Device: DISK; Mounting Position: HORIZONTAL OR VERTICAL; Style Designator: STRAIGHT THRU FLANGED ENDS; Valve Size: 8.000 INCHES IN. 11 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-366-9945 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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