PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RD-50Valve,regulating,fluid Pressure

Armstrong Pumps Inc · NSN 4820-00-845-7723 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-845-7723 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-845-7723. Primary manufacturer part number: RD-50.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • 5 verified cross-references
  • Primary manufacturer: Armstrong Pumps Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-845-7723, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Armstrong Pumps Inc. This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersItt Bell and Gosset-Hydronics a Unit of Itt Fluid Handling Div (CAGE 06631); Armstrong Pumps Inc (CAGE 52694)
Technical Specifications
ParameterValue
NSN4820-00-845-7723
Primary Part NumberRD-50
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerArmstrong Pumps Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5310-00-239-1962110-196 INTERCHANGEABLE
Washer,flat
Avionics Specialties, Inc.
5950-00-294-3000 INTERCHANGEABLE
Transformer,radio Frequency
3030-00-330-8821 INTERCHANGEABLE
Belts,v,matched Set
4720-00-541-88592556-12 INTERCHANGEABLE
Hose,nonmetallic
Danfoss Power Solutions II, Llc
5940-00-563-4095110-10 INTERCHANGEABLE
Terminal,lug
Zierick Mfg Corp
5365-00-811-76289195516 INTERCHANGEABLE
Spacer,sleeve
Us Army Aviation and Missile Command
3120-00-818-6765B11-12 INTERCHANGEABLE
Bearing,sleeve
Roller Bearing Co of America, Inc Div Pic Design
7025-01-439-0954RD50 INTERCHANGEABLE
Disk Drive Unit
Miltope Corporation
2040-01-567-5562RD-50 INTERCHANGEABLE
Paddle,boat
Caviness Wood Working
Cross-Reference Index
Part NumberManufacturer
12 Itt Bell and Gosset-Hydronics a Unit of Itt Fluid Handling Div (USA)
110196 Itt Bell and Gosset-Hydronics a Unit of Itt Fluid Handling Div (USA)
P12 Itt Bell and Gosset-Hydronics a Unit of Itt Fluid Handling Div (USA)
B7-12 Itt Bell and Gosset-Hydronics a Unit of Itt Fluid Handling Div (USA)
RD-50 PRIMARY Armstrong Pumps Inc (USA)
Related Parts
5310-00-239-1962INTERCHANGEABLE
WASHER,FLAT
110-196
5950-00-294-3000INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
3030-00-330-8821INTERCHANGEABLE
BELTS,V,MATCHED SET
4720-00-541-8859INTERCHANGEABLE
HOSE,NONMETALLIC
2556-12
5940-00-563-4095INTERCHANGEABLE
TERMINAL,LUG
110-10
5365-00-811-7628INTERCHANGEABLE
SPACER,SLEEVE
9195516
3120-00-818-6765INTERCHANGEABLE
BEARING,SLEEVE
B11-12
7025-01-439-0954INTERCHANGEABLE
DISK DRIVE UNIT
RD50
2040-01-567-5562INTERCHANGEABLE
PADDLE,BOAT
RD-50

Frequently Asked Questions

What is NSN 4820-00-845-7723?

NSN 4820-00-845-7723 is a Valve,regulating,fluid Pressure, manufactured by Armstrong Pumps Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-845-7723?

NSN 4820-00-845-7723 has 5 cross-referenced part numbers: 12 (Itt Bell and Gosset-Hydronics a Unit of Itt Fluid Handling Div), 110196 (Itt Bell and Gosset-Hydronics a Unit of Itt Fluid Handling Div), P12 (Itt Bell and Gosset-Hydronics a Unit of Itt Fluid Handling Div), B7-12 (Itt Bell and Gosset-Hydronics a Unit of Itt Fluid Handling Div), RD-50 (Armstrong Pumps Inc).

What NSN replaces 4820-00-845-7723?

There are 9 known substitutes for 4820-00-845-7723: 5310-00-239-1962, 5950-00-294-3000, 3030-00-330-8821 and 6 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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