Seat, Valve4820-01-003-7633

NSN 4820-01-003-7633 · NIIN 010037633

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-003-7633 · 4820010037633 · NIIN 010037633 · 01-003-7633 · FSC 4820 Valves, Nonpowered · 183304-0093 · 280666PC13PT183 · 280666PC13PT183304-0093 · 183304-93

Nearby stock numbers ← 4820-01-003-7608 Valve, Ball · 4820-01-003-7634 Seat, Valve →

4820-01-003-7633 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Body Outside Diameter: 0.807 INCHES MINIMUM AND 0.809 INCHES MAXIMUM IN
Criticality Code Justification: FEAT
Style Designator: PLAIN
Body Inside Diameter: 0.499 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
Seating Surface Shape: FLAT

Identification

NSN: 4820-01-003-7633
NIIN: 010037633
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-003-7633, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	4820-01-003-7633
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Body Outside Diameter	0.807 INCHES MINIMUM AND 0.809 INCHES MAXIMUM IN
Criticality Code Justification	FEAT
Style Designator	PLAIN
Body Inside Diameter	0.499 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
Material	PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
Seating Surface Shape	FLAT

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	Y

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
183304-0093	3/2 Design control — primary reference U.S. Government activity
280666PC13PT183	C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity
280666PC13PT183304-0093	5/9 Secondary reference U.S. Government activity
183304-93	5/2 Secondary 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 4820-01-003-7633?

NSN 4820-01-003-7633 is a Seat,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-003-7633?

Key specifications for 4820-01-003-7633: Overall Height: 0.059 INCHES MINIMUM AND 0.061 INCHES MAXIMUM IN; Body Outside Diameter: 0.807 INCHES MINIMUM AND 0.809 INCHES MAXIMUM IN; Criticality Code Justification: FEAT; Style Designator: PLAIN. 6 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-003-7633 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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