Valve, Relief, Pressure and Temper4820-01-464-0440

NSN 4820-01-464-0440 · NIIN 014640440

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-464-0440 · 4820014640440 · NIIN 014640440 · 01-464-0440 · FSC 4820 Valves, Nonpowered · D51020 REV A 48T 59PSI · R10AC1C111-BM1 D51020 · R10AC1C111-BM1 D51020

Nearby stock numbers ← 4820-01-464-0434 Valve, Flow Control · 4820-01-464-0485 Parts Kit, Valve →

4820-01-464-0440 — Valves, Nonpowered

Features

Valve,relief,pressure and Temper — FSC 4820
Flow Control Device: NEEDLE
Temp Rating: 150.0 FAHRENHEIT DEGF
Body Style: ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS
First End Style Designator: PLAIN
End Connection Quantity: 2
Temp Adjustability: NOT ADJUSTABLE
Material: COPPER ALLOY BODY

Identification

NSN: 4820-01-464-0440
NIIN: 014640440
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-464-0440, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	4820-01-464-0440
Item Name	Valve,relief,pressure and Temper
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Flow Control Device	NEEDLE
Temp Rating	150.0 FAHRENHEIT DEGF
Body Style	ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS
First End Style Designator	PLAIN
End Connection Quantity	2
Temp Adjustability	NOT ADJUSTABLE
Material	COPPER ALLOY BODY

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
D51020 REV A 48T 59PSI	5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics
R10AC1C111-BM1 D51020	3/9 Design control — primary reference Hunt Valve Company Inc Dba Union Flonetics
R10AC1C111-BM1 D51020	C/1 Advisory reference — outside the item-of-supply concept Hunt Valve Company, 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 4820-01-464-0440?

NSN 4820-01-464-0440 is a Valve,relief,pressure and Temper, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-464-0440?

Key specifications for 4820-01-464-0440: Flow Control Device: NEEDLE; Temp Rating: 150.0 FAHRENHEIT DEGF; Body Style: ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS; First End Style Designator: PLAIN. 7 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-464-0440 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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