PartsTable TECHNICAL DATA SHEET

NSN 4820-01-244-5991Government record, cited

Valve, Butterfly4820-01-244-5991

NSN 4820-01-244-5991 · NIIN 012445991 · Part number 143-703-080-360-033

Lexair Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 56607

Government record, cited

NSN 4820-01-244-5991 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-244-5991. Manufacturer of record part number: 143-703-080-360-033.

Also searched as 4820-01-244-5991 · 4820012445991 · NIIN 012445991 · 01-244-5991 · FSC 4820 Valves, Nonpowered · CAGE 56607 · 143-703-080-360-033

Nearby stock numbers ← 4820-01-244-5990 Valve, Safety Relief · 4820-01-244-5995 →

4820-01-244-5991 — Valves, Nonpowered

Features

Valve,butterfly — FSC 4820
Style Designator: STRAIGHT THRU
Valve Size: 8.000 INCHES IN
Material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE
Material: STEEL CORROSION RESISTING BODY
Material: PLASTIC POLYTETRAFLUOROETHYLENE SEAT
Valve Operation Method: MANUAL
1 manufacturer part number on file

Identification

NSN: 4820-01-244-5991
NIIN: 012445991
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 143-703-080-360-033
Manufacturer: Lexair Inc

General Description

The Valve,butterfly, cataloged under National Stock Number 4820-01-244-5991, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Lexair Inc. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4820-01-244-5991
Primary Part Number	143-703-080-360-033
Item Name	Valve,butterfly
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Lexair Inc
Status	ACTIVE
Style Designator	STRAIGHT THRU
Valve Size	8.000 INCHES IN
Material	STEEL CORROSION RESISTING FLOW CONTROL DEVICE
Material	STEEL CORROSION RESISTING BODY
Material	PLASTIC POLYTETRAFLUOROETHYLENE SEAT
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

Cross-Reference Index

Part Number	Manufacturer
143-703-080-360-033 PRIMARY	Lexair Inc (USA)

Reference documents

Reference	Meaning
143-703-080-360-033	3/9 Design control — primary reference Emerson Automation Solutions Final Control Us Lp

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 4820-01-244-5991?

NSN 4820-01-244-5991 is a Valve,butterfly, manufactured by Lexair Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-244-5991?

NSN 4820-01-244-5991 has 1 manufacturer part number on file: 143-703-080-360-033 (Lexair Inc).

What are the specifications of 143-703-080-360-033?

Key specifications for 143-703-080-360-033: Style Designator: STRAIGHT THRU; Valve Size: 8.000 INCHES IN; Material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE; Material: STEEL CORROSION RESISTING BODY. 6 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-244-5991 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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