PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M73AValve,globe

Mirax · NSN 4820-01-436-4878 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-436-4878 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-436-4878. Primary manufacturer part number: M73A.
Features
  • Valve,globe — FSC 4820
  • Bonnet Type: PACKING RETAINING
  • Operating Pressure: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Material: ALUMINUM ALLOY OR COPPER ALLOY BODY
  • Style Designator: STRAIGHT THRU
  • Thread Series Designator: NPT ALL ENDS
  • Thread Direction: RIGHT-HAND ALL ENDS
  • Valve Operation Method: MANUAL
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Aluminum Alloy or Copper Alloy Body construction
General Description

The Valve,globe, cataloged under National Stock Number 4820-01-436-4878, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Mirax. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-436-4878
Primary Part NumberM73A
Item NameValve,globe
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMirax
StatusACTIVE
Bonnet TypePACKING RETAINING
Operating Pressure250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MaterialALUMINUM ALLOY OR COPPER ALLOY BODY
Style DesignatorSTRAIGHT THRU
Thread Series DesignatorNPT ALL ENDS
Thread DirectionRIGHT-HAND ALL ENDS
Valve Operation MethodMANUAL
Connection StylePLAIN (PIPE) FIRST END
Connection TypeTHREADED INTERNAL PIPE SECOND END
Nominal Thread Size0.250 INCHES ALL ENDS IN
Connection StylePLAIN,OPTIONAL END(PIPE) SECOND END
Connection TypeTHREADED EXTERNAL PIPE FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3825-00-543-6053 INTERCHANGEABLE
Distributor,water,tank Type
8145-01-671-2062820-00796 INTERCHANGEABLE
Shipping and Storage Container,e
908 Devices Inc
Cross-Reference Index
Part NumberManufacturer
M73A PRIMARY Mirax (USA)
Related Parts
3825-00-543-6053INTERCHANGEABLE
DISTRIBUTOR,WATER,TANK TYPE
8145-01-671-2062INTERCHANGEABLE
SHIPPING AND STORAGE CONTAINER,E
820-00796

Frequently Asked Questions

What is NSN 4820-01-436-4878?

NSN 4820-01-436-4878 is a Valve,globe, manufactured by Mirax, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-436-4878?

NSN 4820-01-436-4878 has 1 cross-referenced part number: M73A (Mirax).

What NSN replaces 4820-01-436-4878?

There are 2 known substitutes for 4820-01-436-4878: 3825-00-543-6053, 8145-01-671-2062. Verify interchangeability with system specifications before substitution.

What are the specifications of M73A?

Key specifications for M73A: Bonnet Type: PACKING RETAINING; Operating Pressure: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Material: ALUMINUM ALLOY OR COPPER ALLOY BODY; Style Designator: STRAIGHT THRU. 13 total characteristics are documented in the Federal Logistics Information System.

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