PartsTable TECHNICAL DATA SHEET

NSN 4820-01-270-6417Government record, cited

Valve, Butterfly4820-01-270-6417

NSN 4820-01-270-6417 · NIIN 012706417

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-270-6417 · 4820012706417 · NIIN 012706417 · 01-270-6417 · FSC 4820 Valves, Nonpowered · 911J561 MDL 6R2040-42AA-2MM · 6R2040-42AA-2RM · 911-561

Nearby stock numbers ← 4820-01-270-6416 Valve, Safety Relief · 4820-01-270-6418 Valve, Plug →

4820-01-270-6417 — Valves, Nonpowered

Features

Valve,butterfly — FSC 4820
Style Designator: STRAIGHT THRU
Operating Pressure: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Valve Size: 6.000 INCHES IN
Maximum Operating Temp: 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
Mounting Facility: WAFER
Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
Material: ALUMINUM ALLOY FLOW CONTROL DEVICE

Identification

NSN: 4820-01-270-6417
NIIN: 012706417
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Valve,butterfly, cataloged under National Stock Number 4820-01-270-6417, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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	4820-01-270-6417
Item Name	Valve,butterfly
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Style Designator	STRAIGHT THRU
Operating Pressure	200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Valve Size	6.000 INCHES IN
Maximum Operating Temp	250.0 FAHRENHEIT SINGLE RESPONSE DEGF
Mounting Facility	WAFER
Material	RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
Material	ALUMINUM ALLOY FLOW CONTROL DEVICE
Material	RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING
Material	ALUMINUM ALLOY BODY
Valve Operation Method	MANUAL

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 6

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

4820-01-271-367758320A425 POSSIBLE MATCH

GEAR OPERATOR,VALVE

Possible match (shared part number)Dover Resources, Inc. Div Norriseal

4820-01-289-53738" R2040-42AA-MM POSSIBLE MATCH

VALVE,BUTTERFLY

Possible match (shared part number)Norriseal Norris Values Div Dba Dover Co

4820-01-291-138212" R2040-42AA-2MM POSSIBLE MATCH

VALVE,BUTTERFLY

Possible match (shared part number)Norriseal Norris Values Div Dba Dover Co

4820-01-298-85895"R2040-42AA-2RM POSSIBLE MATCH

VALVE,BUTTERFLY

Possible match (shared part number)Dover Resources, Inc. Div Norriseal

4820-01-372-6503911E561 POSSIBLE MATCH

VALVE,BUTTERFLY

Possible match (shared part number)Norriseal Norris Values Div Dba Dover Co

5120-01-510-748991156-1 POSSIBLE MATCH

REMOVER,ELECTRICAL CONTACT

Possible match (shared part number)Te Connectivity Corporation

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
911J561 MDL 6R2040-42AA-2MM	5/9 Secondary reference U.S. Government activity
6R2040-42AA-2RM	3/2 Design control — primary reference U.S. Government activity
911-561	5/9 Secondary reference U.S. Government activity

Related Parts

4820-01-271-3677POSSIBLE MATCH

GEAR OPERATOR,VALVE

58320A425

4820-01-289-5373POSSIBLE MATCH

VALVE,BUTTERFLY

8" R2040-42AA-MM

4820-01-291-1382POSSIBLE MATCH

VALVE,BUTTERFLY

12" R2040-42AA-2MM

4820-01-298-8589POSSIBLE MATCH

VALVE,BUTTERFLY

5"R2040-42AA-2RM

4820-01-372-6503POSSIBLE MATCH

VALVE,BUTTERFLY

911E561

5120-01-510-7489POSSIBLE MATCH

REMOVER,ELECTRICAL CONTACT

91156-1

Frequently Asked Questions

What is NSN 4820-01-270-6417?

NSN 4820-01-270-6417 is a Valve,butterfly, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-01-270-6417?

6 possible matches (shared part number, not a government interchangeability claim): 4820-01-271-3677, 4820-01-289-5373, 4820-01-291-1382. Verify interchangeability with system specifications before substitution.

What are the specifications of 4820-01-270-6417?

Key specifications for 4820-01-270-6417: Style Designator: STRAIGHT THRU; Operating Pressure: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Valve Size: 6.000 INCHES IN; Maximum Operating Temp: 250.0 FAHRENHEIT SINGLE RESPONSE DEGF. 10 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-270-6417 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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