PartsTable TECHNICAL DATA SHEET

NSN 4820-01-367-4775Government record, cited

Valve, Butterfly4820-01-367-4775

NSN 4820-01-367-4775 · NIIN 013674775 · Part number R285B-666AA-12IN

Dover Resources, Inc. Div Norriseal · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 1NB39

Government record, cited

NSN 4820-01-367-4775 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-367-4775. Manufacturer of record part number: R285B-666AA-12IN.

Also searched as 4820-01-367-4775 · 4820013674775 · NIIN 013674775 · 01-367-4775 · FSC 4820 Valves, Nonpowered · CAGE 1NB39 · R285B-666AA-12IN

Nearby stock numbers ← 4820-01-367-4774 Valve, Butterfly · 4820-01-367-4776 Valve, Butterfly →

4820-01-367-4775 — Valves, Nonpowered

Features

Valve,butterfly — FSC 4820
Material: NICKEL ALLOY STEM
Material: NICKEL ALLOY FLOW CONTROL DEVICE
Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
Material: NICKEL ALLOY BODY
Valve Operation Method: ELECTRIC MOTOR
1 manufacturer part number on file
Manufacturer of record: Dover Resources, Inc. Div Norriseal

Identification

NSN: 4820-01-367-4775
NIIN: 013674775
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: R285B-666AA-12IN
Manufacturer: Dover Resources, Inc. Div Norriseal

General Description

The Valve,butterfly, cataloged under National Stock Number 4820-01-367-4775, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dover Resources, Inc. Div Norriseal. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4820-01-367-4775
Primary Part Number	R285B-666AA-12IN
Item Name	Valve,butterfly
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Dover Resources, Inc. Div Norriseal
Status	ACTIVE
Material	NICKEL ALLOY STEM
Material	NICKEL ALLOY FLOW CONTROL DEVICE
Material	RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
Material	NICKEL ALLOY BODY
Valve Operation Method	ELECTRIC MOTOR

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
R285B-666AA-12IN PRIMARY	Dover Resources, Inc. Div Norriseal (USA)

Reference documents

Reference	Meaning
R285B-666AA-12IN	5/9 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 4820-01-367-4775?

NSN 4820-01-367-4775 is a Valve,butterfly, manufactured by Dover Resources, Inc. Div Norriseal, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-367-4775?

NSN 4820-01-367-4775 has 1 manufacturer part number on file: R285B-666AA-12IN (Dover Resources, Inc. Div Norriseal).

What are the specifications of R285B-666AA-12IN?

Key specifications for R285B-666AA-12IN: Material: NICKEL ALLOY STEM; Material: NICKEL ALLOY FLOW CONTROL DEVICE; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT; Material: NICKEL ALLOY BODY. 5 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-367-4775 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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