Disk, Valve4820-01-200-2603

NSN 4820-01-200-2603 · NIIN 012002603 · Part number 145-00420

Grove Valve Operations · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 26505

Government record, cited

NSN 4820-01-200-2603 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-200-2603. Manufacturer of record part number: 145-00420.

Also searched as 4820-01-200-2603 · 4820012002603 · NIIN 012002603 · 01-200-2603 · FSC 4820 Valves, Nonpowered · CAGE 26505 · 145-00420

Nearby stock numbers ← 4820-01-200-2602 Disk, Valve · 4820-01-200-2604 Disk, Valve →

4820-01-200-2603 — Valves, Nonpowered

Features

Disk,valve — FSC 4820
Shank Diameter: 0.500 INCHES NOMINAL IN
Flange Diameter: 0.375 INCHES NOMINAL IN
Seat Angle: 45.0 DEGREES NOMINAL
Material: STEEL CORROSION RESISTING
1 manufacturer part number on file
Manufacturer of record: Grove Valve Operations

Identification

NSN: 4820-01-200-2603
NIIN: 012002603
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 145-00420
Manufacturer: Grove Valve Operations

General Description

The Disk,valve, cataloged under National Stock Number 4820-01-200-2603, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Grove Valve Operations. Government technical data includes 4 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-200-2603
Primary Part Number	145-00420
Item Name	Disk,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Grove Valve Operations
Status	ACTIVE
Shank Diameter	0.500 INCHES NOMINAL IN
Flange Diameter	0.375 INCHES NOMINAL IN
Seat Angle	45.0 DEGREES NOMINAL
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

⇄ Related Items 1

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

4820-01-248-4214145-00-420 POSSIBLE MATCH

DISK,VALVE

Possible match (shared part number)Grove Valve Operations

Cross-Reference Index

Part Number	Manufacturer
145-00420 PRIMARY	Grove Valve Operations (USA)

Related Parts

4820-01-248-4214POSSIBLE MATCH

DISK,VALVE

145-00-420

Frequently Asked Questions

What is NSN 4820-01-200-2603?

NSN 4820-01-200-2603 is a Disk,valve, manufactured by Grove Valve Operations, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-200-2603?

NSN 4820-01-200-2603 has 1 manufacturer part number on file: 145-00420 (Grove Valve Operations).

What NSN replaces 4820-01-200-2603?

1 possible match (shared part number, not a government interchangeability claim): 4820-01-248-4214. Verify interchangeability with system specifications before substitution.

What are the specifications of 145-00420?

Key specifications for 145-00420: Shank Diameter: 0.500 INCHES NOMINAL IN; Flange Diameter: 0.375 INCHES NOMINAL IN; Overall Height: 2.781 INCHES NOMINAL IN; Seat Angle: 45.0 DEGREES NOMINAL. 4 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-200-2603 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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