Valve, Safety Relief4820-01-280-3950

NSN 4820-01-280-3950 · NIIN 012803950

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-280-3950 · 4820012803950 · NIIN 012803950 · 01-280-3950 · FSC 4820 Valves, Nonpowered · K23023 · K23023

Nearby stock numbers ← 4820-01-280-3949 · 4820-01-280-3951 Valve, Safety Relief →

4820-01-280-3950 — Valves, Nonpowered

Features

Valve,safety Relief — FSC 4820
Flow Control Device: POPPET
Bonnet Type: EXPOSED SPRING
Media for Which Designed: HYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE
Opening Pressure Setting: 3.0 POUNDS PER SQUARE INCH LBS
Valve Operation Method: AUTOMATIC

Identification

NSN: 4820-01-280-3950
NIIN: 012803950
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-280-3950, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	4820-01-280-3950
Item Name	Valve,safety Relief
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Flow Control Device	POPPET
Bonnet Type	EXPOSED SPRING
Media for Which Designed	HYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE
Opening Pressure Setting	3.0 POUNDS PER SQUARE INCH LBS
Valve Operation Method	AUTOMATIC

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
K23023	C/1 Advisory reference — outside the item-of-supply concept Parker-Hannifin Corporation Dba Hydraulic Filter Division Div Hydraulic & Fuel Filter Division
K23023	3/9 Design control — primary reference Parker Hannifin Corporation Dba Gresen Hydraulics Div Hydraulic Valve Division

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 4820-01-280-3950?

NSN 4820-01-280-3950 is a Valve,safety Relief, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-280-3950?

Key specifications for 4820-01-280-3950: Flow Control Device: POPPET; Bonnet Type: EXPOSED SPRING; Media for Which Designed: HYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE; Opening Pressure Setting: 3.0 POUNDS PER SQUARE INCH LBS. 5 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-280-3950 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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