PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RD-5-3Valve,regulating,fluid Pressure

Mid-State Sales, Inc. Div Defense Products Group · NSN 4820-00-538-6884 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-538-6884 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-538-6884. Primary manufacturer part number: RD-5-3.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • 12 verified cross-references
  • Primary manufacturer: Mid-State Sales, Inc. Div Defense Products Group
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-538-6884, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Mid-State Sales, Inc. Div Defense Products Group. This item has 12 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersUniweld Products, Inc. Dba Uniweld Products Inc (CAGE 17941); Rego Co a Marmon Group Co (CAGE 06023); Modern Engineering Co Inc (CAGE 41140); Lincoln Electric Co the Harris Calorific Div (CAGE 27372); Mid-State Sales, Inc. Div Defense Products Group (CAGE 62727)
Technical Specifications
ParameterValue
NSN4820-00-538-6884
Primary Part NumberRD-5-3
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMid-State Sales, Inc. Div Defense Products Group
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5950-00-071-2143 INTERCHANGEABLE
Coil,radio Frequency
6720-00-112-87751214-3 INTERCHANGEABLE
Arm,counterweight
Bae Systems Information and Electronic Systems Integration Inc.
2925-00-137-12007528 INTERCHANGEABLE
Link
Te Connectivity Corporation
6850-00-186-2963 INTERCHANGEABLE
Leak Test Compound
5310-00-297-88333153766PC126 INTERCHANGEABLE
Nut,plain,hexagon
Naval Ship Systems Command
3120-00-339-43483374626 INTERCHANGEABLE
Bearing,sleeve
Eaton Corporation Dba Airflex Div Div Airflex
5330-00-435-9046 INTERCHANGEABLE
Gasket
3530-00-449-4021 INTERCHANGEABLE
Presser Foot,sewing Machine
5985-00-729-5374601B INTERCHANGEABLE
Adapter,waveguide
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
4030-00-807-4107 INTERCHANGEABLE
Anchor,guy
Cross-Reference Index
Part NumberManufacturer
RHTL8016 Uniweld Products, Inc. Dba Uniweld Products Inc (USA)
2068 Rego Co a Marmon Group Co (USA)
6643 TYPE AB Modern Engineering Co Inc (USA)
12143 Rego Co a Marmon Group Co (USA)
96-100-580 Lincoln Electric Co the Harris Calorific Div (USA)
RD-5-3 PRIMARY Mid-State Sales, Inc. Div Defense Products Group (USA)
9296-125-580 Lincoln Electric Co the Harris Calorific Div (USA)
7528 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
7528 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
M0DIFIEDTYPEH Rego Co a Marmon Group Co (USA)
3302608 Lincoln Electric Co the Harris Calorific Div (USA)
45R3 Naval Department Specifications Promulgated by Department of the Navy (USA)
Related Parts
5950-00-071-2143INTERCHANGEABLE
COIL,RADIO FREQUENCY
6720-00-112-8775INTERCHANGEABLE
ARM,COUNTERWEIGHT
1214-3
2925-00-137-1200INTERCHANGEABLE
LINK
7528
6850-00-186-2963INTERCHANGEABLE
LEAK TEST COMPOUND
5310-00-297-8833INTERCHANGEABLE
NUT,PLAIN,HEXAGON
3153766PC126
3120-00-339-4348INTERCHANGEABLE
BEARING,SLEEVE
3374626
5330-00-435-9046INTERCHANGEABLE
GASKET
3530-00-449-4021INTERCHANGEABLE
PRESSER FOOT,SEWING MACHINE
5985-00-729-5374INTERCHANGEABLE
ADAPTER,WAVEGUIDE
601B
4030-00-807-4107INTERCHANGEABLE
ANCHOR,GUY
6135-01-031-0862INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
C18.1M-910A
5325-01-301-0507INTERCHANGEABLE
RING,RETAINING
7528

Frequently Asked Questions

What is NSN 4820-00-538-6884?

NSN 4820-00-538-6884 is a Valve,regulating,fluid Pressure, manufactured by Mid-State Sales, Inc. Div Defense Products Group, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-538-6884?

NSN 4820-00-538-6884 has 12 cross-referenced part numbers: RHTL8016 (Uniweld Products, Inc. Dba Uniweld Products Inc), 2068 (Rego Co a Marmon Group Co), 6643 TYPE AB (Modern Engineering Co Inc), 12143 (Rego Co a Marmon Group Co), 96-100-580 (Lincoln Electric Co the Harris Calorific Div) and 7 more.

What NSN replaces 4820-00-538-6884?

There are 12 known substitutes for 4820-00-538-6884: 5950-00-071-2143, 6720-00-112-8775, 2925-00-137-1200 and 9 more. Verify interchangeability with system specifications before substitution.

Is NSN 4820-00-538-6884 still in active supply?

NSN 4820-00-538-6884 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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