PartsTable TECHNICAL DATA SHEET
NSN 4820-01-723-1870Government record, cited

Valve, Check4820-01-723-1870

NSN 4820-01-723-1870 · NIIN 017231870 · Part number 144-9961
Caterpillar Inc Div Caterpillar Defense · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 11083
Government record, cited
NSN 4820-01-723-1870 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-723-1870. Manufacturer of record part number: 144-9961.
Also searched as  4820-01-723-1870 · 4820017231870 · NIIN 017231870 · 01-723-1870 · FSC 4820 Valves, Nonpowered · CAGE 11083 · 144-9961
Nearby stock numbers  ·
Features
  • Valve,check — FSC 4820
  • Flow Control Device: BALL
  • Material: COPPER ALLOY OVERALL
  • 1 manufacturer part number on file
  • Manufacturer of record: Caterpillar Inc Div Caterpillar Defense
Identification
  • NSN: 4820-01-723-1870
  • NIIN: 017231870
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: 144-9961
  • Manufacturer: Caterpillar Inc Div Caterpillar Defense
General Description

The Valve,check, cataloged under National Stock Number 4820-01-723-1870, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-723-1870
Primary Part Number144-9961
Item NameValve,check
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Flow Control DeviceBALL
MaterialCOPPER ALLOY OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
144-9961 PRIMARY Caterpillar Inc Div Caterpillar Defense (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 4820-01-723-1870?

NSN 4820-01-723-1870 is a Valve,check, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-723-1870?

NSN 4820-01-723-1870 has 1 manufacturer part number on file: 144-9961 (Caterpillar Inc Div Caterpillar Defense).

What are the specifications of 144-9961?

Key specifications for 144-9961: Flow Control Device: BALL; Special Features: 1.0 MEGAPASCAL MAXIMUM OPERATING PRESSURE, ROHS COMPLIANT, FOR USE WITH HOSE INNER DIAMETER SIZE 0.37 INCHES IN; Part Name Assigned by Controlling Agency: BALL VALVE ASSEMBLY; Material: COPPER ALLOY OVERALL. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-723-1870 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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