PartsTable TECHNICAL DATA SHEET

NSN 4820-01-338-1877Government record, cited

Valve, Safety Relief4820-01-338-1877

NSN 4820-01-338-1877 · NIIN 013381877 · Part number 50123777004

Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 09990

Government record, cited

NSN 4820-01-338-1877 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-338-1877. Manufacturer of record part number: 50123777004.

Also searched as 4820-01-338-1877 · 4820013381877 · NIIN 013381877 · 01-338-1877 · FSC 4820 Valves, Nonpowered · CAGE 09990 · 50123777004 · 627678C91 · 627678C91

Nearby stock numbers ← 4820-01-338-1876 Valve, Check · 4820-01-338-1878 Valve, Safety Relief →

4820-01-338-1877 — Valves, Nonpowered

Features

Valve,safety Relief — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division

Identification

NSN: 4820-01-338-1877
NIIN: 013381877
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 50123777004
Manufacturer: Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division

General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-338-1877, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Valve,safety Relief
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (CAGE 09990); Komatsu America Corp. (CAGE 0SAT8)

Technical Specifications

Parameter	Value
NSN	4820-01-338-1877
Primary Part Number	50123777004
Item Name	Valve,safety Relief
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)

Cross-Reference Index

Part Number	Manufacturer
50123777004 PRIMARY	Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA)
627678C91	Komatsu America Corp. (USA)

Reference documents

Reference	Meaning
50123777004	3/9 Design control — primary reference Parker Hannifin Corporation Dba Gresen Hydraulics Div Hydraulic Valve Division
627678C91	5/9 Secondary reference Komatsu American Intl Co

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 4820-01-338-1877?

NSN 4820-01-338-1877 is a Valve,safety Relief, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-338-1877?

NSN 4820-01-338-1877 has 2 manufacturer part numbers on file: 50123777004 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division), 627678C91 (Komatsu America Corp.).

Is NSN 4820-01-338-1877 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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