PartsTable TECHNICAL DATA SHEET

NSN 4820-01-422-9411Government record, cited

Seat, Valve4820-01-422-9411

NSN 4820-01-422-9411 · NIIN 014229411 · Part number 21E622380870000

William Powell Company, the Dba Powell Valve Div the Starflo Corporation · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 48422

Government record, cited

NSN 4820-01-422-9411 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-422-9411. Manufacturer of record part number: 21E622380870000.

Also searched as 4820-01-422-9411 · 4820014229411 · NIIN 014229411 · 01-422-9411 · FSC 4820 Valves, Nonpowered · CAGE 48422 · 21E622380870000 · 058310 ITEM 14 · E-62238

Nearby stock numbers ← 4820-01-422-9408 Disk, Valve · 4820-01-422-9412 Valve, Check →

4820-01-422-9411 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: William Powell Company, the Dba Powell Valve Div the Starflo Corporation

Identification

NSN: 4820-01-422-9411
NIIN: 014229411
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 21E622380870000
Manufacturer: William Powell Company, the Dba Powell Valve Div the Starflo Corporation

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-422-9411, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is William Powell Company, the Dba Powell Valve Div the Starflo Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.

Technical Specifications

Parameter	Value
NSN	4820-01-422-9411
Primary Part Number	21E622380870000
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	William Powell Company, the Dba Powell Valve Div the Starflo Corporation
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
058310 ITEM 14	William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA)
21E622380870000 PRIMARY	William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA)

Reference documents

Reference	Meaning
E-62238	5/9 Secondary reference William Powell Company, the Dba Powell Valve Div the Starflo Corporation

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 4820-01-422-9411?

NSN 4820-01-422-9411 is a Seat,valve, manufactured by William Powell Company, the Dba Powell Valve Div the Starflo Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-422-9411?

NSN 4820-01-422-9411 has 2 manufacturer part numbers on file: 058310 ITEM 14 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation), 21E622380870000 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation).

What are the specifications of 21E622380870000?

Key specifications for 21E622380870000: End Item Identification: VALVE 2 IN. IN. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-422-9411 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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