Seat, Valve4820-01-282-5099

NSN 4820-01-282-5099 · NIIN 012825099 · Part number F-637-31-2 1/2IN-20SEAT RING

Nibco Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 12168

Government record, cited

NSN 4820-01-282-5099 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-282-5099. Manufacturer of record part number: F-637-31-2 1/2IN-20SEAT RING.

Also searched as 4820-01-282-5099 · 4820012825099 · NIIN 012825099 · 01-282-5099 · FSC 4820 Valves, Nonpowered · CAGE 12168 · F-637-31-2 1/2IN-20SEAT RING

Nearby stock numbers ← 4820-01-282-5098 · 4820-01-282-5100 Seat, Valve →

4820-01-282-5099 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Material: COPPER ALLOY SEAT
Seating Surface Shape: FLAT
1 manufacturer part number on file
Manufacturer of record: Nibco Inc

Identification

NSN: 4820-01-282-5099
NIIN: 012825099
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: F-637-31-2 1/2IN-20SEAT RING
Manufacturer: Nibco Inc

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-282-5099, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Nibco Inc. Government technical data includes 2 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	4820-01-282-5099
Primary Part Number	F-637-31-2 1/2IN-20SEAT RING
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Nibco Inc
Status	ACTIVE
Material	COPPER ALLOY SEAT
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	X

Cross-Reference Index

Part Number	Manufacturer
F-637-31-2 1/2IN-20SEAT RING PRIMARY	Nibco Inc (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 4820-01-282-5099?

NSN 4820-01-282-5099 is a Seat,valve, manufactured by Nibco Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-282-5099?

NSN 4820-01-282-5099 has 1 manufacturer part number on file: F-637-31-2 1/2IN-20SEAT RING (Nibco Inc).

What are the specifications of F-637-31-2 1/2IN-20SEAT RING?

Key specifications for F-637-31-2 1/2IN-20SEAT RING: Material: COPPER ALLOY SEAT; Seating Surface Shape: FLAT. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-282-5099 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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