PartsTable TECHNICAL DATA SHEET

NSN 4820-01-259-1123Government record, cited

Valve, Regulating, System Pressure4820-01-259-1123

NSN 4820-01-259-1123 · NIIN 012591123 · Part number R37121-100

Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 4P412

Government record, cited

NSN 4820-01-259-1123 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-259-1123. Manufacturer of record part number: R37121-100.

Also searched as 4820-01-259-1123 · 4820012591123 · NIIN 012591123 · 01-259-1123 · FSC 4820 Valves, Nonpowered · CAGE 4P412 · R37121-100 · 127122-000 · 127121-000 · 127122-000

Nearby stock numbers ← 4820-01-259-1011 Valve, Power Head · 4820-01-259-1305 Valve, Globe →

4820-01-259-1123 — Valves, Nonpowered

Features

Valve,regulating,system Pressure — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division

Identification

NSN: 4820-01-259-1123
NIIN: 012591123
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: R37121-100
Manufacturer: Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division

General Description

The Valve,regulating,system Pressure, cataloged under National Stock Number 4820-01-259-1123, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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,regulating,system Pressure
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division (CAGE 4P412)

Technical Specifications

Parameter	Value
NSN	4820-01-259-1123
Primary Part Number	R37121-100
Item Name	Valve,regulating,system Pressure
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist 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
R37121-100 PRIMARY	Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division (USA)

Reference documents

Reference	Meaning
127122-000	5/9 Secondary reference Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division
127121-000	5/9 Secondary reference Ingersoll-Rand Company Dba Ingersoll-Rand
127122-000	3/9 Design control — primary reference Ingersoll-Rand Company Dba Ingersoll-Rand

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 4820-01-259-1123?

NSN 4820-01-259-1123 is a Valve,regulating,system Pressure, manufactured by Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-259-1123?

NSN 4820-01-259-1123 has 1 manufacturer part number on file: R37121-100 (Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division).

Is NSN 4820-01-259-1123 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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