Seat, Valve4820-01-491-4739

NSN 4820-01-491-4739 · NIIN 014914739 · Part number A3.3535-VITON-ITEM7

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

Government record, cited

NSN 4820-01-491-4739 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-491-4739. Manufacturer of record part number: A3.3535-VITON-ITEM7.

Also searched as 4820-01-491-4739 · 4820014914739 · NIIN 014914739 · 01-491-4739 · FSC 4820 Valves, Nonpowered · CAGE 08PB1 · A3.3535-VITON-ITEM7 · A3.3535

Nearby stock numbers ← 4820-01-491-4736 Valve, Scupper · 4820-01-491-4753 Valve, Check →

4820-01-491-4739 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Material: RUBBER SEAT
Seating Surface Shape: ANGULAR
1 manufacturer part number on file
Manufacturer of record: Young & Cunningham America, Inc.

Identification

NSN: 4820-01-491-4739
NIIN: 014914739
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: A3.3535-VITON-ITEM7
Manufacturer: Young & Cunningham America, Inc.

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-491-4739, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Young & Cunningham America, Inc.. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-491-4739
Primary Part Number	A3.3535-VITON-ITEM7
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Young & Cunningham America, Inc.
Status	ACTIVE
Material	RUBBER SEAT
Seating Surface Shape	ANGULAR

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
A3.3535-VITON-ITEM7 PRIMARY	Young & Cunningham America, Inc. (USA)

Reference documents

Reference	Meaning
A3.3535	D/9 Drawing number reference only Young & Cunningham America, Inc.

Frequently Asked Questions

What is NSN 4820-01-491-4739?

NSN 4820-01-491-4739 is a Seat,valve, manufactured by Young & Cunningham America, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-491-4739?

NSN 4820-01-491-4739 has 1 manufacturer part number on file: A3.3535-VITON-ITEM7 (Young & Cunningham America, Inc.).

What are the specifications of A3.3535-VITON-ITEM7?

Key specifications for A3.3535-VITON-ITEM7: Special Features: NHA VALVE,SCUPPER 6IN IN; Material: RUBBER SEAT; Seating Surface Shape: ANGULAR. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-491-4739 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.

PartsTable Design LLC · partstable.com