PartsTable TECHNICAL DATA SHEET

NSN 4820-01-666-4658Government record, cited

Valve, Regulating, Fluid Pressure4820-01-666-4658

NSN 4820-01-666-4658 · NIIN 016664658 · Part number 44-5262-241V

Tescom Corp Dba Tescom Div Tescom · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 13669

Government record, cited

NSN 4820-01-666-4658 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-666-4658. Manufacturer of record part number: 44-5262-241V.

Also searched as 4820-01-666-4658 · 4820016664658 · NIIN 016664658 · 01-666-4658 · FSC 4820 Valves, Nonpowered · CAGE 13669 · 44-5262-241V

Nearby stock numbers ← 4820-01-666-4584 Seat, Valve · 4820-01-666-4660 Disk, Valve →

4820-01-666-4658 — Valves, Nonpowered

Features

Valve,regulating,fluid Pressure — FSC 4820
Flow Control Device: PISTON
Material: STEEL CORROSION RESISTING BODY
Maximum Inlet Pressure Rating: ERR-060
Furnished Items: BONNET
1 manufacturer part number on file
Manufacturer of record: Tescom Corp Dba Tescom Div Tescom

Identification

NSN: 4820-01-666-4658
NIIN: 016664658
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 44-5262-241V
Manufacturer: Tescom Corp Dba Tescom Div Tescom

General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-666-4658, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Tescom Corp Dba Tescom Div Tescom. Government technical data includes 4 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. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-666-4658
Primary Part Number	44-5262-241V
Item Name	Valve,regulating,fluid Pressure
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Tescom Corp Dba Tescom Div Tescom
Status	ACTIVE
Flow Control Device	PISTON
Material	STEEL CORROSION RESISTING BODY
Maximum Inlet Pressure Rating	ERR-060
Furnished Items	BONNET

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
44-5262-241V PRIMARY	Tescom Corp Dba Tescom Div Tescom (USA)

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 4820-01-666-4658?

NSN 4820-01-666-4658 is a Valve,regulating,fluid Pressure, manufactured by Tescom Corp Dba Tescom Div Tescom, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-666-4658?

NSN 4820-01-666-4658 has 1 manufacturer part number on file: 44-5262-241V (Tescom Corp Dba Tescom Div Tescom).

What are the specifications of 44-5262-241V?

Key specifications for 44-5262-241V: Flow Control Device: PISTON; Overall Length: 5.30 INCHES NOMINAL IN; Overall Width: 2.27 INCHES NOMINAL IN; Special Features: OPERATING TEMPERATURE:-26 DEGREES CELSIUS TO 93 DEGREES CELSIUS,MAX OPERATING TORQUE:30 IN-LBS,SEAT MATERIAL:VESPEL,O-RING MATERIAL:VITON,FILTER MATERIAL:STANLESS STEEL,INLET AND OUTLET PORT TYPE:NPTF,PORT SIZE:1/4 INCH,VENTING IN. 4 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-666-4658 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.

PartsTable Design LLC · partstable.com