Disk, Valve4820-01-561-7250

NSN 4820-01-561-7250 · NIIN 015617250 · Part number 6637-0820122

Velan Valve Corp. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 57574

Government record, cited

NSN 4820-01-561-7250 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-561-7250. Manufacturer of record part number: 6637-0820122.

Also searched as 4820-01-561-7250 · 4820015617250 · NIIN 015617250 · 01-561-7250 · FSC 4820 Valves, Nonpowered · CAGE 57574 · 6637-0820122

Nearby stock numbers ← 4820-01-561-7249 Insert Seat · 4820-01-561-7251 Head, Pilot Discharge →

4820-01-561-7250 — Valves, Nonpowered

Features

Disk,valve — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Velan Valve Corp.

Identification

NSN: 4820-01-561-7250
NIIN: 015617250
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 6637-0820122
Manufacturer: Velan Valve Corp.

General Description

The Disk,valve, cataloged under National Stock Number 4820-01-561-7250, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Velan Valve Corp.. 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	4820-01-561-7250
Primary Part Number	6637-0820122
Item Name	Disk,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Velan Valve Corp.
Status	ACTIVE

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
6637-0820122 PRIMARY	Velan Valve Corp. (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 4820-01-561-7250?

NSN 4820-01-561-7250 is a Disk,valve, manufactured by Velan Valve Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-561-7250?

NSN 4820-01-561-7250 has 1 manufacturer part number on file: 6637-0820122 (Velan Valve Corp.).

What are the specifications of 6637-0820122?

Key specifications for 6637-0820122: End Item Identification: NSC-420 (WMSL-750). 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-561-7250 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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