Seat, Valve4820-00-288-5407

NSN 4820-00-288-5407 · NIIN 002885407

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-00-288-5407 · 4820002885407 · NIIN 002885407 · 00-288-5407 · FSC 4820 Valves, Nonpowered

Nearby stock numbers ← 4820-00-288-5277 Seat, Valve · 4820-00-288-5482 Sleeve and Slide, Directional Con →

4820-00-288-5407 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Flange Seat to Disk End Height: 0.108 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
Flange Diameter: 0.307 INCHES MINIMUM AND 0.309 INCHES MAXIMUM IN
FSC Application Data: ACFT AIR CONDITIONING,OXYGEN SYSTEM
Body Outside Diameter: 0.153 INCHES MINIMUM AND 0.155 INCHES MAXIMUM IN
Hardness Rating: 55.0 ROCKWELL C NOMINAL OVERALL
Style Designator: PLAIN FLANGED
Body Inside Diameter: 0.109 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN

Identification

NSN: 4820-00-288-5407
NIIN: 002885407
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Seat,valve, cataloged under National Stock Number 4820-00-288-5407, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4820-00-288-5407
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Flange Seat to Disk End Height	0.108 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
Flange Diameter	0.307 INCHES MINIMUM AND 0.309 INCHES MAXIMUM IN
FSC Application Data	ACFT AIR CONDITIONING,OXYGEN SYSTEM
Body Outside Diameter	0.153 INCHES MINIMUM AND 0.155 INCHES MAXIMUM IN
Hardness Rating	55.0 ROCKWELL C NOMINAL OVERALL
Style Designator	PLAIN FLANGED
Body Inside Diameter	0.109 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN
Under Flange Height	0.090 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN
Material	STEEL COMP 440C OVERALL
Seating Surface Shape	RADIAL

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
1617215-1	3/2 Design control — primary reference U.S. Government activity

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 4820-00-288-5407?

NSN 4820-00-288-5407 is a Seat,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-00-288-5407?

Key specifications for 4820-00-288-5407: Flange Seat to Disk End Height: 0.108 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN; Flange Diameter: 0.307 INCHES MINIMUM AND 0.309 INCHES MAXIMUM IN; FSC Application Data: ACFT AIR CONDITIONING,OXYGEN SYSTEM; Body Outside Diameter: 0.153 INCHES MINIMUM AND 0.155 INCHES MAXIMUM IN. 10 specifications are documented in the U.S. Government catalog.

Is NSN 4820-00-288-5407 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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