Seat, Valve4820-00-369-3397

NSN 4820-00-369-3397 · NIIN 003693397

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-00-369-3397 · 4820003693397 · NIIN 003693397 · 00-369-3397 · FSC 4820 Valves, Nonpowered · 402713PCALL · 406950PC402713

Nearby stock numbers ← 4820-00-369-3395 · 4820-00-369-3402 Disk, Valve →

4820-00-369-3397 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Thread Length: 0.250 INCHES NOMINAL SINGLE THREADED PORTION IN
Style Designator: PLAIN THREADED
Body Inside Diameter: 0.500 INCHES NOMINAL IN
Nominal Thread Size: 0.313 INCHES SINGLE THREADED PORTION IN
Thread Class: 2A SINGLE THREADED PORTION A
Material: ALUMINUM ALLOY OVERALL
Seat Angle in Deg: 45.000 NOMINAL

Identification

NSN: 4820-00-369-3397
NIIN: 003693397
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Seat,valve, cataloged under National Stock Number 4820-00-369-3397, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	4820-00-369-3397
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Thread Length	0.250 INCHES NOMINAL SINGLE THREADED PORTION IN
Style Designator	PLAIN THREADED
Body Inside Diameter	0.500 INCHES NOMINAL IN
Nominal Thread Size	0.313 INCHES SINGLE THREADED PORTION IN
Thread Class	2A SINGLE THREADED PORTION A
Material	ALUMINUM ALLOY OVERALL
Seat Angle in Deg	45.000 NOMINAL
Thread Series Designator	UNIFIED NATIONAL COARSE (UNC) SINGLE THREADED PORTION
Seating Surface Shape	ANGULAR

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
402713PCALL	3/9 Design control — primary reference Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div
406950PC402713	5/9 Secondary reference Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div

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 4820-00-369-3397?

NSN 4820-00-369-3397 is a Seat,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-00-369-3397?

Key specifications for 4820-00-369-3397: Overall Height: 0.575 INCHES NOMINAL IN; Thread Length: 0.250 INCHES NOMINAL SINGLE THREADED PORTION IN; Style Designator: PLAIN THREADED; Body Inside Diameter: 0.500 INCHES NOMINAL IN. 9 specifications are documented in the U.S. Government catalog.

Is NSN 4820-00-369-3397 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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