Valve, Regulating, Temperature4820-01-348-9521

NSN 4820-01-348-9521 · NIIN 013489521

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-348-9521 · 4820013489521 · NIIN 013489521 · 01-348-9521 · FSC 4820 Valves, Nonpowered · 40052-9 PART 40052-903 · 40052-9

Nearby stock numbers ← 4820-01-348-8959 Valve, Plug · 4820-01-348-9523 Valve, Regulating, Fluid Pressure →

4820-01-348-9521 — Valves, Nonpowered

Features

Valve,regulating,temperature — FSC 4820
Flow Control Device: DISK
Two-Way Valve Action: REVERSE ACTING
Second End Relationship with First End: IDENTICAL
Body Style: STRAIGHT THRU
First End Style Designator: SOCKET W/BRAZING RING
Temp Rating: 100.0 FAHRENHEIT NOMINAL DEGF
End Connection Quantity: 2

Identification

NSN: 4820-01-348-9521
NIIN: 013489521
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Valve,regulating,temperature, cataloged under National Stock Number 4820-01-348-9521, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	4820-01-348-9521
Item Name	Valve,regulating,temperature
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Flow Control Device	DISK
Two-Way Valve Action	REVERSE ACTING
Second End Relationship with First End	IDENTICAL
Body Style	STRAIGHT THRU
First End Style Designator	SOCKET W/BRAZING RING
Temp Rating	100.0 FAHRENHEIT NOMINAL DEGF
End Connection Quantity	2
First End Connection Type	UNTHREADED INTERNAL TUBE
Temp Adjustability	ADJUSTABLE
First End Outside Diameter Tube Accommodated	1.000 INCHES NOMINAL IN
Material	COPPER ALLOY BODY
Material	STEEL CORROSION RESISTING STEM
Material	COPPER ALLOY SEAT

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
40052-9 PART 40052-903	3/9 Design control — primary reference Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
40052-9	D/9 Drawing number reference only Trac Regulator Co., Inc. Dba Trac Regulator Co Inc

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 4820-01-348-9521?

NSN 4820-01-348-9521 is a Valve,regulating,temperature, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-348-9521?

Key specifications for 4820-01-348-9521: Flow Control Device: DISK; Two-Way Valve Action: REVERSE ACTING; Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU. 13 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-348-9521 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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