PartsTable TECHNICAL DATA SHEET

NSN 4820-01-681-4444Government record, cited

Seat, Valve4820-01-681-4444

NSN 4820-01-681-4444 · NIIN 016814444 · Part number WV60SWMP-02-2.00IN NO 3

William E Williams Valve Corp · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 79342

Government record, cited

NSN 4820-01-681-4444 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-681-4444. Manufacturer of record part number: WV60SWMP-02-2.00IN NO 3.

Also searched as 4820-01-681-4444 · 4820016814444 · NIIN 016814444 · 01-681-4444 · FSC 4820 Valves, Nonpowered · CAGE 79342 · WV60SWMP-02-2.00IN NO 3 · LPD 28 2.00IN NO 3 · FIG S60SW3-316LMP 2.00IN NO 3

Nearby stock numbers ← 4820-01-681-4443 Valve, Safety Relief · 4820-01-681-4470 Disk, Valve →

4820-01-681-4444 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: William E Williams Valve Corp

Identification

NSN: 4820-01-681-4444
NIIN: 016814444
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: WV60SWMP-02-2.00IN NO 3
Manufacturer: William E Williams Valve Corp

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-681-4444, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is William E Williams Valve Corp. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Seat,valve
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	William E Williams Valve Corp (CAGE 79342)

Technical Specifications

Parameter	Value
NSN	4820-01-681-4444
Primary Part Number	WV60SWMP-02-2.00IN NO 3
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	William E Williams Valve Corp
Status	ACTIVE

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
WV60SWMP-02-2.00IN NO 3 PRIMARY	William E Williams Valve Corp (USA)
FIG S60SW3-316LMP 2.00IN NO 3	William E Williams Valve Corp (USA)

Reference documents

Reference	Meaning
LPD 28 2.00IN NO 3	D/9 Drawing number reference only William E Williams Valve Corp

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 4820-01-681-4444?

NSN 4820-01-681-4444 is a Seat,valve, manufactured by William E Williams Valve Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-681-4444?

NSN 4820-01-681-4444 has 2 manufacturer part numbers on file: WV60SWMP-02-2.00IN NO 3 (William E Williams Valve Corp), FIG S60SW3-316LMP 2.00IN NO 3 (William E Williams Valve Corp).

Is NSN 4820-01-681-4444 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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