Disk, Valve4820-01-259-8963

NSN 4820-01-259-8963 · NIIN 012598963

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-259-8963 · 4820012598963 · NIIN 012598963 · 01-259-8963 · FSC 4820 Valves, Nonpowered · 5000S4824F1385516 PIECE 2,3 · 5000S4824F1385516 · 5000S4824F1385513 · 5000S4824F1385513 PIECE 3,5

Nearby stock numbers ← 4820-01-259-8951 Valve, Vent · 4820-01-259-9032 →

4820-01-259-8963 — Valves, Nonpowered

Features

Disk,valve — FSC 4820
Pressure Rating: 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
Shoulder Width: 0.062 INCHES NOMINAL IN
Shoulder Height: 0.125 INCHES NOMINAL IN
Temp Rating: 650.0 FAHRENHEIT NOMINAL DEGF
Outside Diameter: 1.437 INCHES NOMINAL IN
Style Designator: PLUG
Seat Angle: 45.0 DEGREES NOMINAL

Identification

NSN: 4820-01-259-8963
NIIN: 012598963
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Disk,valve, cataloged under National Stock Number 4820-01-259-8963, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	4820-01-259-8963
Item Name	Disk,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Pressure Rating	150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
Shoulder Width	0.062 INCHES NOMINAL IN
Shoulder Height	0.125 INCHES NOMINAL IN
Temp Rating	650.0 FAHRENHEIT NOMINAL DEGF
Outside Diameter	1.437 INCHES NOMINAL IN
Style Designator	PLUG
Seat Angle	45.0 DEGREES NOMINAL
Nominal Thread Size	1.187 INCHES IN
Media for Which Designed	STEAM
Thread Class	3B
Thread Quantity Per Inch	12
Material	STEEL
Thread Series Designator	UN

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
5000S4824F1385516 PIECE 2,3	3/2 Design control — primary reference U.S. Government activity
5000S4824F1385516	D/9 Drawing number reference only U.S. Government activity
5000S4824F1385513	D/9 Drawing number reference only U.S. Government activity
5000S4824F1385513 PIECE 3,5	5/2 Secondary reference U.S. Government activity

Frequently Asked Questions

What is NSN 4820-01-259-8963?

NSN 4820-01-259-8963 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-259-8963?

Key specifications for 4820-01-259-8963: Overall Height: 0.812 INCHES NOMINAL IN; Pressure Rating: 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Shoulder Width: 0.062 INCHES NOMINAL IN; Shoulder Height: 0.125 INCHES NOMINAL IN. 13 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-259-8963 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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