Disk, Valve4820-01-644-6320

NSN 4820-01-644-6320 · NIIN 016446320

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-644-6320 · 4820016446320 · NIIN 016446320 · 01-644-6320 · FSC 4820 Valves, Nonpowered · 098820CD · PL-4367 NO. 4

Nearby stock numbers ← 4820-01-644-6314 Stem, Fluid Valve · 4820-01-644-6324 Valve, Safety Relief →

4820-01-644-6320 — Valves, Nonpowered

Features

Disk,valve — FSC 4820
Material: STEEL COMP 304

Identification

NSN: 4820-01-644-6320
NIIN: 016446320
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Disk,valve, cataloged under National Stock Number 4820-01-644-6320, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	4820-01-644-6320
Item Name	Disk,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Material	STEEL COMP 304

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
098820CD	3/2 Design control — primary reference U.S. Government activity
PL-4367 NO. 4	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 4820-01-644-6320?

NSN 4820-01-644-6320 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-644-6320?

Key specifications for 4820-01-644-6320: Part Name Assigned by Controlling Agency: 2110 DR DISK; End Item Identification: 2 INCH CHECK VALVE IN; Material: STEEL COMP 304. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-644-6320 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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