Valve, Calibrated Flow4820-01-258-9405

NSN 4820-01-258-9405 · NIIN 012589405

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-258-9405 · 4820012589405 · NIIN 012589405 · 01-258-9405 · FSC 4820 Valves, Nonpowered

Nearby stock numbers ← 4820-01-258-9404 Valve, Regulating, Fluid Pressure · 4820-01-258-9414 Parts Kit, Ball Valve →

4820-01-258-9405 — Valves, Nonpowered

Features

Valve,calibrated Flow — FSC 4820
Second End Relationship with First End: IDENTICAL
Body Style: STRAIGHT THRU
First End Style Designator: SOCKET
End Connection Quantity: 2
First End Connection Type: UNTHREADED INTERNAL PIPE
First End Nominal Pipe Size Accommodated: 0.500 INCHES IN
Material: COPPER ALLOY BODY

Identification

NSN: 4820-01-258-9405
NIIN: 012589405
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Valve,calibrated Flow, cataloged under National Stock Number 4820-01-258-9405, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4820-01-258-9405
Item Name	Valve,calibrated Flow
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Second End Relationship with First End	IDENTICAL
Body Style	STRAIGHT THRU
First End Style Designator	SOCKET
End Connection Quantity	2
First End Connection Type	UNTHREADED INTERNAL PIPE
First End Nominal Pipe Size Accommodated	0.500 INCHES IN
Material	COPPER ALLOY BODY
Media for Which Designed	WATER
Valve Discharge Flow Rate	5.5 GALLONS PER MINUTE

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
2354-1142	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 4820-01-258-9405?

NSN 4820-01-258-9405 is a Valve,calibrated Flow, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-258-9405?

Key specifications for 4820-01-258-9405: Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU; First End Style Designator: SOCKET; End Connection Quantity: 2. 9 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-258-9405 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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