Retainer, Disk, Valve4820-01-625-1649

NSN 4820-01-625-1649 · NIIN 016251649 · Part number 8254-012-061

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

Government record, cited

NSN 4820-01-625-1649 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-625-1649. Manufacturer of record part number: 8254-012-061.

Also searched as 4820-01-625-1649 · 4820016251649 · NIIN 016251649 · 01-625-1649 · FSC 4820 Valves, Nonpowered · CAGE 57574 · 8254-012-061 · 7840-108PC40

Nearby stock numbers ← 4820-01-625-1647 Disk, Valve · 4820-01-625-1771 Valve, Ball →

4820-01-625-1649 — Valves, Nonpowered

Features

Retainer,disk,valve — FSC 4820
Material Document and Classification: ASTM A479 TYPE 304 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A479 TYPE 316 ASSN STD 2ND MATERIAL RESPONSE
Valve Size for Which Designed: 2.50 INCHES IN
Valve Design Control Activity: 57574
Material: STEEL CORROSION RESISTING
2 manufacturer part numbers on file
Manufacturer of record: Velan Valve Corp.

Identification

NSN: 4820-01-625-1649
NIIN: 016251649
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 8254-012-061
Manufacturer: Velan Valve Corp.

General Description

The Retainer,disk,valve, cataloged under National Stock Number 4820-01-625-1649, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Velan Valve Corp.. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-625-1649
Primary Part Number	8254-012-061
Item Name	Retainer,disk,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Velan Valve Corp.
Status	ACTIVE
Material Document and Classification	ASTM A479 TYPE 304 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A479 TYPE 316 ASSN STD 2ND MATERIAL RESPONSE
Valve Size for Which Designed	2.50 INCHES IN
Valve Design Control Activity	57574
Material	STEEL CORROSION RESISTING

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
8254-012-061 PRIMARY	Velan Valve Corp. (USA)
7840-108PC40	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 4820-01-625-1649?

NSN 4820-01-625-1649 is a Retainer,disk,valve, manufactured by Velan Valve Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-625-1649?

NSN 4820-01-625-1649 has 2 manufacturer part numbers on file: 8254-012-061 (Velan Valve Corp.), 7840-108PC40 (Velan Valve Corp.).

What are the specifications of 8254-012-061?

Key specifications for 8254-012-061: Material Document and Classification: ASTM A479 TYPE 304 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A479 TYPE 316 ASSN STD 2ND MATERIAL RESPONSE; Valve Size for Which Designed: 2.50 INCHES IN; Part Name Assigned by Controlling Agency: DISC UNION; Valve Design Control Activity: 57574. 4 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-625-1649 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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