Valve, Check4820-01-423-4393

NSN 4820-01-423-4393 · NIIN 014234393

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-423-4393 · 4820014234393 · NIIN 014234393 · 01-423-4393 · FSC 4820 Valves, Nonpowered · 1221 10IN STL · 1221 · VV-1000-74557577

Nearby stock numbers ← 4820-01-423-4387 Stem, Fluid Valve · 4820-01-423-4407 Valve, Ball →

4820-01-423-4393 — Valves, Nonpowered

Features

Valve,check — FSC 4820
Flange Shape: ROUND WITH HOLES FIRST END
Flange Face Design: PLAIN FIRST END
Mounting Position: VERTICAL
Connection Type: FLANGE FIRST END
Style Designator: STRAIGHT THRU
Material: COPPER ALLOY FLOW CONTROL DEVICE
Material: STEEL UNS K03504 BODY

Identification

NSN: 4820-01-423-4393
NIIN: 014234393
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Valve,check, cataloged under National Stock Number 4820-01-423-4393, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-423-4393
Item Name	Valve,check
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Flange Shape	ROUND WITH HOLES FIRST END
Flange Face Design	PLAIN FIRST END
Mounting Position	VERTICAL
Connection Type	FLANGE FIRST END
Style Designator	STRAIGHT THRU
Material	COPPER ALLOY FLOW CONTROL DEVICE
Material	STEEL UNS K03504 BODY
Material	STEEL CORROSION RESISTING SEAT
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
1221 10IN STL	5/9 Secondary reference Kings Point Machinery Inc Dba Kpm
1221	D/9 Drawing number reference only Kings Point Machinery Inc Dba Kpm
VV-1000-74557577	3/9 Design control — primary reference Kings Point Machinery Inc Dba Kpm

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 4820-01-423-4393?

NSN 4820-01-423-4393 is a Valve,check, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-423-4393?

Key specifications for 4820-01-423-4393: Flange Shape: ROUND WITH HOLES FIRST END; Flange Face Design: PLAIN FIRST END; Mounting Position: VERTICAL; Connection Type: FLANGE FIRST END. 9 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-423-4393 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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