Seat, Valve4820-01-047-1926

NSN 4820-01-047-1926 · NIIN 010471926

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-047-1926 · 4820010471926 · NIIN 010471926 · 01-047-1926 · FSC 4820 Valves, Nonpowered · N243XT · 3762X5 PC21 · 3762X5

Nearby stock numbers ← 4820-01-047-1902 · 4820-01-047-1931 →

4820-01-047-1926 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Flange Seat to Disk End Height: 0.184 INCHES NOMINAL IN
Flange Diameter: 7.062 INCHES NOMINAL IN
Thread Length: 0.500 INCHES NOMINAL SINGLE THREADED PORTION IN
Style Designator: THREADED FLANGED
Body Inside Diameter: 6.000 INCHES NOMINAL IN
Nominal Thread Size: 6.625 INCHES SINGLE THREADED PORTION IN
Under Flange Height: 0.663 INCHES NOMINAL IN

Identification

NSN: 4820-01-047-1926
NIIN: 010471926
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-047-1926, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	4820-01-047-1926
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Flange Seat to Disk End Height	0.184 INCHES NOMINAL IN
Flange Diameter	7.062 INCHES NOMINAL IN
Thread Length	0.500 INCHES NOMINAL SINGLE THREADED PORTION IN
Style Designator	THREADED FLANGED
Body Inside Diameter	6.000 INCHES NOMINAL IN
Nominal Thread Size	6.625 INCHES SINGLE THREADED PORTION IN
Under Flange Height	0.663 INCHES NOMINAL IN
Thread Class	2A SINGLE THREADED PORTION A
Thread Quantity Per Inch	12 SINGLE THREADED PORTION
Material	NICKEL ALLOY OVERALL
Thread Series Designator	UNS SINGLE THREADED PORTION
Seating Surface Shape	FLAT

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
N243XT	3/9 Design control — primary reference Lunkenheimer Co
3762X5 PC21	5/9 Secondary reference Lunkenheimer Co
3762X5	D/9 Drawing number reference only Lunkenheimer Co

Frequently Asked Questions

What is NSN 4820-01-047-1926?

NSN 4820-01-047-1926 is a Seat,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-047-1926?

Key specifications for 4820-01-047-1926: Flange Seat to Disk End Height: 0.184 INCHES NOMINAL IN; Flange Diameter: 7.062 INCHES NOMINAL IN; Thread Length: 0.500 INCHES NOMINAL SINGLE THREADED PORTION IN; Style Designator: THREADED FLANGED. 12 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-047-1926 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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