Diaphragm, Actuator Valve, Special4820-01-187-1480

NSN 4820-01-187-1480 · NIIN 011871480 · Part number H186-31-3

Dresser Industries Inc Leroi Div · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 35301

Government record, cited

NSN 4820-01-187-1480 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-187-1480. Manufacturer of record part number: H186-31-3.

Also searched as 4820-01-187-1480 · 4820011871480 · NIIN 011871480 · 01-187-1480 · FSC 4820 Valves, Nonpowered · CAGE 35301 · H186-31-3 · H186-31-2

Nearby stock numbers ← 4820-01-187-1479 Diaphragm, Actuator Valve, Special · 4820-01-187-1770 Valve, Cell →

4820-01-187-1480 — Valves, Nonpowered

Features

Diaphragm,actuator Valve,special — FSC 4820
Outside Diameter: 2.000 INCHES NOMINAL IN
Taper Minor Diameter: 1.295 INCHES NOMINAL IN
Style Designator: SPECIAL SHAPED
Taper Major Diameter: 1.575 INCHES NOMINAL IN
Material Thickness: 0.060 INCHES NOMINAL IN
Material: RUBBER
1 manufacturer part number on file

Identification

NSN: 4820-01-187-1480
NIIN: 011871480
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: H186-31-3
Manufacturer: Dresser Industries Inc Leroi Div

General Description

The Diaphragm,actuator Valve,special, cataloged under National Stock Number 4820-01-187-1480, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dresser Industries Inc Leroi Div. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4820-01-187-1480
Primary Part Number	H186-31-3
Item Name	Diaphragm,actuator Valve,special
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Dresser Industries Inc Leroi Div
Status	ACTIVE
Outside Diameter	2.000 INCHES NOMINAL IN
Taper Minor Diameter	1.295 INCHES NOMINAL IN
Style Designator	SPECIAL SHAPED
Taper Major Diameter	1.575 INCHES NOMINAL IN
Material Thickness	0.060 INCHES NOMINAL IN
Material	RUBBER

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
H186-31-3 PRIMARY	Dresser Industries Inc Leroi Div (USA)

Reference documents

Reference	Meaning
H186-31-2	5/9 Secondary reference Dresser Industries Inc Leroi Div

Frequently Asked Questions

What is NSN 4820-01-187-1480?

NSN 4820-01-187-1480 is a Diaphragm,actuator Valve,special, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-187-1480?

NSN 4820-01-187-1480 has 1 manufacturer part number on file: H186-31-3 (Dresser Industries Inc Leroi Div).

What are the specifications of H186-31-3?

Key specifications for H186-31-3: Overall Height: 0.440 INCHES NOMINAL IN; Outside Diameter: 2.000 INCHES NOMINAL IN; Taper Minor Diameter: 1.295 INCHES NOMINAL IN; Style Designator: SPECIAL SHAPED. 6 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-187-1480 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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