Disk, Valve4820-01-555-7580

NSN 4820-01-555-7580 · NIIN 015557580 · Part number A3.4002S-4IN ITEM 3

Young & Cunningham America, Inc. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 08PB1

Government record, cited

NSN 4820-01-555-7580 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-555-7580. Manufacturer of record part number: A3.4002S-4IN ITEM 3.

Also searched as 4820-01-555-7580 · 4820015557580 · NIIN 015557580 · 01-555-7580 · FSC 4820 Valves, Nonpowered · CAGE 08PB1 · A3.4002S-4IN ITEM 3

Nearby stock numbers ← 4820-01-555-7501 Seat, Valve · 4820-01-555-7586 Valve, Relief, Pressure and Temper →

4820-01-555-7580 — Valves, Nonpowered

Features

Disk,valve — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Young & Cunningham America, Inc.

Identification

NSN: 4820-01-555-7580
NIIN: 015557580
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: A3.4002S-4IN ITEM 3
Manufacturer: Young & Cunningham America, Inc.

General Description

The Disk,valve, cataloged under National Stock Number 4820-01-555-7580, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Young & Cunningham America, Inc.. 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	4820-01-555-7580
Primary Part Number	A3.4002S-4IN ITEM 3
Item Name	Disk,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Young & Cunningham America, Inc.
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
A3.4002S-4IN ITEM 3 PRIMARY	Young & Cunningham America, 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 4820-01-555-7580?

NSN 4820-01-555-7580 is a Disk,valve, manufactured by Young & Cunningham America, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-555-7580?

NSN 4820-01-555-7580 has 1 manufacturer part number on file: A3.4002S-4IN ITEM 3 (Young & Cunningham America, Inc.).

What are the specifications of A3.4002S-4IN ITEM 3?

Key specifications for A3.4002S-4IN ITEM 3: Part Name Assigned by Controlling Agency: WEDGE; End Item Identification: VALVE, GATE 4 IN. P/N A3.4002S-4IN ONBOARD 420 FT (WMSL-750) DEEP WATER NATIONAL SECURITY CUTTER IN. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-555-7580 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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