Valve, Regulating, Temperature4820-01-424-9751

NSN 4820-01-424-9751 · NIIN 014249751 · Part number 65977-80

Thermal Transfer Products Ltd · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 55724

Government record, cited

NSN 4820-01-424-9751 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-424-9751. Manufacturer of record part number: 65977-80.

Also searched as 4820-01-424-9751 · 4820014249751 · NIIN 014249751 · 01-424-9751 · FSC 4820 Valves, Nonpowered · CAGE 55724 · 65977-80 · 12365975 · 12365975 · 12365975

Nearby stock numbers ← 4820-01-424-9722 Valve, Plug · 4820-01-424-9754 →

4820-01-424-9751 — Valves, Nonpowered

Features

Valve,regulating,temperature — FSC 4820
First End Thread Direction: RIGHT-HAND
Second End Relationship with First End: IDENTICAL
Body Style: TEE
Third End Relationship with Preceding Ends: IDENTICAL WITH SECOND END
First End Style Designator: PLAIN
End Connection Quantity: 3
First End Connection Type: THREADED INTERNAL PIPE

Identification

NSN: 4820-01-424-9751
NIIN: 014249751
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 65977-80
Manufacturer: Thermal Transfer Products Ltd

General Description

The Valve,regulating,temperature, cataloged under National Stock Number 4820-01-424-9751, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Thermal Transfer Products Ltd. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 4 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	4820-01-424-9751
Primary Part Number	65977-80
Item Name	Valve,regulating,temperature
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Thermal Transfer Products Ltd
Status	ACTIVE
First End Thread Direction	RIGHT-HAND
Second End Relationship with First End	IDENTICAL
Body Style	TEE
Third End Relationship with Preceding Ends	IDENTICAL WITH SECOND END
First End Style Designator	PLAIN
End Connection Quantity	3
First End Connection Type	THREADED INTERNAL PIPE
Material	IRON CAST BODY
Thread Size and Series/type Designator	1 1/2-11 1/2 NPT FIRST END

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
12365975	U S Army Tank Automotive Command Amsta-Im-Mm (USA)
65977-80 PRIMARY	Thermal Transfer Products Ltd (USA)
12365975 PRIMARY	Bae Systems Land & Armaments L.p. (USA)
12365975	Amz Alabama Inc. (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 4820-01-424-9751?

NSN 4820-01-424-9751 is a Valve,regulating,temperature, manufactured by Thermal Transfer Products Ltd, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-424-9751?

NSN 4820-01-424-9751 has 4 manufacturer part numbers on file: 12365975 (U S Army Tank Automotive Command Amsta-Im-Mm), 65977-80 (Thermal Transfer Products Ltd), 12365975 (Bae Systems Land & Armaments L.p.), 12365975 (Amz Alabama Inc.).

What are the specifications of 65977-80?

Key specifications for 65977-80: First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: IDENTICAL; Body Style: TEE; Third End Relationship with Preceding Ends: IDENTICAL WITH SECOND END. 9 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-424-9751 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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