Valve, Safety Relief4820-01-592-2070

NSN 4820-01-592-2070 · NIIN 015922070 · Part number 1784J-140

Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 28968

Government record, cited

NSN 4820-01-592-2070 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-592-2070. Manufacturer of record part number: 1784J-140.

Also searched as 4820-01-592-2070 · 4820015922070 · NIIN 015922070 · 01-592-2070 · FSC 4820 Valves, Nonpowered · CAGE 28968 · 1784J-140 · 1026069-PN-01-021

Nearby stock numbers ← 4820-01-592-2061 Valve, Ball · 4820-01-592-2133 Valve, Float →

4820-01-592-2070 — Valves, Nonpowered

Features

Valve,safety Relief — FSC 4820
Style Designator: ANGLE
Operating Pressure: 140.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Thread Direction: RIGHT-HAND FIRST END
Nominal Thread Size: 0.250 INCHES FIRST END IN
Maximum Operating Temp: 350.0 FAHRENHEIT SINGLE RESPONSE DEGF
Material: STEEL CORROSION RESISTING OVERALL
Valve Operation Method: AIR

Identification

NSN: 4820-01-592-2070
NIIN: 015922070
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 1784J-140
Manufacturer: Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok

General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-592-2070, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-592-2070
Primary Part Number	1784J-140
Item Name	Valve,safety Relief
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
Status	ACTIVE
Style Designator	ANGLE
Operating Pressure	140.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Thread Direction	RIGHT-HAND FIRST END
Nominal Thread Size	0.250 INCHES FIRST END IN
Maximum Operating Temp	350.0 FAHRENHEIT SINGLE RESPONSE DEGF
Material	STEEL CORROSION RESISTING OVERALL
Valve Operation Method	AIR

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
1784J-140 PRIMARY	Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (USA)
1026069-PN-01-021	Horiba Mira Limited (GBR)

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 4820-01-592-2070?

NSN 4820-01-592-2070 is a Valve,safety Relief, manufactured by Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-592-2070?

NSN 4820-01-592-2070 has 2 manufacturer part numbers on file: 1784J-140 (Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok), 1026069-PN-01-021 (Horiba Mira Limited).

What are the specifications of 1784J-140?

Key specifications for 1784J-140: Style Designator: ANGLE; Operating Pressure: 140.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Thread Direction: RIGHT-HAND FIRST END; Nominal Thread Size: 0.250 INCHES FIRST END IN. 7 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-592-2070 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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