PartsTable TECHNICAL DATA SHEET

NSN 4820-01-264-0679Government record, cited

Seat, Valve4820-01-264-0679

NSN 4820-01-264-0679 · NIIN 012640679 · Part number 21E376650870000

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

Government record, cited

NSN 4820-01-264-0679 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-264-0679. Manufacturer of record part number: 21E376650870000.

Also searched as 4820-01-264-0679 · 4820012640679 · NIIN 012640679 · 01-264-0679 · FSC 4820 Valves, Nonpowered · CAGE 48422 · 21E376650870000 · 9-771-33-0416 · BM11135X13

Nearby stock numbers ← 4820-01-264-0678 Seat, Valve · 4820-01-264-0680 Seat, Valve →

4820-01-264-0679 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Material: STEEL OVERALL
1 manufacturer part number on file
Manufacturer of record: William Powell Company, the Dba Powell Valve Div the Starflo Corporation

Identification

NSN: 4820-01-264-0679
NIIN: 012640679
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 21E376650870000
Manufacturer: William Powell Company, the Dba Powell Valve Div the Starflo Corporation

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-264-0679, 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. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	4820-01-264-0679
Primary Part Number	21E376650870000
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	William Powell Company, the Dba Powell Valve Div the Starflo Corporation
Status	ACTIVE
Material	STEEL OVERALL

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
21E376650870000 PRIMARY	William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA)

Reference documents

Reference	Meaning
9-771-33-0416	5/9 Secondary reference Greenfield Compression Inc.
BM11135X13	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 4820-01-264-0679?

NSN 4820-01-264-0679 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 4820-01-264-0679?

NSN 4820-01-264-0679 has 1 manufacturer part number on file: 21E376650870000 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation).

What are the specifications of 21E376650870000?

Key specifications for 21E376650870000: Material: STEEL OVERALL. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-264-0679 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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