Valve, Flow Control4820-01-312-1838

NSN 4820-01-312-1838 · NIIN 013121838

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-312-1838 · 4820013121838 · NIIN 013121838 · 01-312-1838 · FSC 4820 Valves, Nonpowered · 403M-3 2IN P/N 90658G · 90658G

Nearby stock numbers ← 4820-01-312-1837 Valve, Diaphragm, Stop · 4820-01-312-1839 Valve, Restrictor Check →

4820-01-312-1838 — Valves, Nonpowered

Features

Valve,flow Control — FSC 4820
Flow Control Device: DIAPHRAGM
Flange Face Design: PLAIN
Maximum Operating Temp and Media for Which Designed: 180.0 FAHRENHEIT FUEL/OIL, HYDROCARBON DEGF
Operating Pressure and Type: 275.0 POUNDS PER SQUARE INCH (PSI) HYDROCARBON FUEL OR OIL MAXIMUM REQUIRED LBS
Connection Type: FLANGE, ROUND W/HOLES
End Connection Quantity: 2
Valve Size: 2.000 INCHES IN

Identification

NSN: 4820-01-312-1838
NIIN: 013121838
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Valve,flow Control, cataloged under National Stock Number 4820-01-312-1838, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-312-1838
Item Name	Valve,flow Control
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Flow Control Device	DIAPHRAGM
Flange Face Design	PLAIN
Maximum Operating Temp and Media for Which Designed	180.0 FAHRENHEIT FUEL/OIL, HYDROCARBON DEGF
Operating Pressure and Type	275.0 POUNDS PER SQUARE INCH (PSI) HYDROCARBON FUEL OR OIL MAXIMUM REQUIRED LBS
Connection Type	FLANGE, ROUND W/HOLES
End Connection Quantity	2
Valve Size	2.000 INCHES IN
Body Material	COPPER ALLOY
Bolt Hole Quantity	6
Flange Diameter	5.562 INCHES IN
Face to Face Distance	9.375 INCHES IN
Valve Operation Method	HYDRAULIC

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

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

Reference documents

Reference	Meaning
403M-3 2IN P/N 90658G	5/2 Secondary reference U.S. Government activity
90658G	3/2 Design control — primary 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 4820-01-312-1838?

NSN 4820-01-312-1838 is a Valve,flow Control, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-312-1838?

Key specifications for 4820-01-312-1838: Flow Control Device: DIAPHRAGM; Flange Face Design: PLAIN; Maximum Operating Temp and Media for Which Designed: 180.0 FAHRENHEIT FUEL/OIL, HYDROCARBON DEGF; Operating Pressure and Type: 275.0 POUNDS PER SQUARE INCH (PSI) HYDROCARBON FUEL OR OIL MAXIMUM REQUIRED LBS. 12 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-312-1838 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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