PartsTable TECHNICAL DATA SHEET

NSN 4820-01-261-4479Government record, cited

Seat, Valve4820-01-261-4479

NSN 4820-01-261-4479 · NIIN 012614479 · Part number 2672269

Honeywell International Inc Div Aerospace-South Bend (bendix Dr) · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 06848

Government record, cited

NSN 4820-01-261-4479 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-261-4479. Manufacturer of record part number: 2672269.

Also searched as 4820-01-261-4479 · 4820012614479 · NIIN 012614479 · 01-261-4479 · FSC 4820 Valves, Nonpowered · CAGE 06848 · 2672269

Nearby stock numbers ← 4820-01-261-4352 Valve, Check · 4820-01-261-4830 Valve, Regulating, Fluid Pressure →

4820-01-261-4479 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Flange Seat to Disk End Height: 0.100 INCHES NOMINAL IN
Flange Diameter: 0.670 INCHES NOMINAL IN
Body Outside Diameter: 0.500 INCHES NOMINAL IN
Body Stepped Inside Diameter: 0.150 INCHES NOMINAL FIRST STEP IN
Body Stepped Inside Diameter: 0.380 INCHES NOMINAL SECOND STEP IN
Body Stepped Inside Diameter: 0.560 INCHES NOMINAL THIRD STEP IN
Style Designator: PLAIN FLANGED

Identification

NSN: 4820-01-261-4479
NIIN: 012614479
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 2672269
Manufacturer: Honeywell International Inc Div Aerospace-South Bend (bendix Dr)

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-261-4479, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Honeywell International Inc Div Aerospace-South Bend (bendix Dr). Government technical data includes 11 specifications, 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. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-261-4479
Primary Part Number	2672269
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Honeywell International Inc Div Aerospace-South Bend (bendix Dr)
Status	ACTIVE
Flange Seat to Disk End Height	0.100 INCHES NOMINAL IN
Flange Diameter	0.670 INCHES NOMINAL IN
Body Outside Diameter	0.500 INCHES NOMINAL IN
Body Stepped Inside Diameter	0.150 INCHES NOMINAL FIRST STEP IN
Body Stepped Inside Diameter	0.380 INCHES NOMINAL SECOND STEP IN
Body Stepped Inside Diameter	0.560 INCHES NOMINAL THIRD STEP IN
Style Designator	PLAIN FLANGED
Under Flange Height	0.490 INCHES NOMINAL IN
Material	ALUMINUM ALLOY OVERALL
Seat Angle in Deg	30.000 NOMINAL
Seating Surface Shape	ANGULAR

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL Q — CCL Item — Commerce Control List
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
2672269 PRIMARY	Honeywell International Inc Div Aerospace-South Bend (bendix Dr) (USA)

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 4820-01-261-4479?

NSN 4820-01-261-4479 is a Seat,valve, manufactured by Honeywell International Inc Div Aerospace-South Bend (bendix Dr), classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-261-4479?

NSN 4820-01-261-4479 has 1 manufacturer part number on file: 2672269 (Honeywell International Inc Div Aerospace-South Bend (bendix Dr)).

What are the specifications of 2672269?

Key specifications for 2672269: Flange Seat to Disk End Height: 0.100 INCHES NOMINAL IN; Flange Diameter: 0.670 INCHES NOMINAL IN; Body Outside Diameter: 0.500 INCHES NOMINAL IN; Body Stepped Inside Diameter: 0.150 INCHES NOMINAL FIRST STEP IN. 11 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-261-4479 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.

What is the DEMIL code for NSN 4820-01-261-4479?

NSN 4820-01-261-4479 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.

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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