PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

73-68-1Valve,regulating,fluid Pressure

Flowserve Corporation Div Flowserve Us Inc · NSN 4820-00-840-1421 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-840-1421 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-840-1421. Primary manufacturer part number: 73-68-1.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Body Style: STRAIGHT THRU
  • Media for Which Designed: AIR
  • First End Style Designator: PLAIN
  • Regulation Type: AUTOMATIC SINGLE STAGE
  • Filter: NOT INCLUDED
  • Second End Relationship with First End: IDENTICAL
  • Outlet Pressure Setting: ERR-060
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Seat construction
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-840-1421, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Flowserve Corporation Div Flowserve Us Inc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-840-1421
Primary Part Number73-68-1
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerFlowserve Corporation Div Flowserve Us Inc
StatusACTIVE
Body StyleSTRAIGHT THRU
Media for Which DesignedAIR
First End Style DesignatorPLAIN
Regulation TypeAUTOMATIC SINGLE STAGE
FilterNOT INCLUDED
Second End Relationship with First EndIDENTICAL
Outlet Pressure SettingERR-060
First End Thread DirectionRIGHT-HAND
Valve Loading MethodDOME
MaterialSTEEL CORROSION RESISTING SEAT
End Connection Quantity2
Flow Control DeviceDISK
Thread Size and Series/type Designator1/4-18 NPT FIRST END
Maximum Inlet Pressure RatingERR-060
First End Connection TypeTHREADED INTERNAL PIPE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5360-00-291-1193 INTERCHANGEABLE
Spring,helical,compression
5330-00-353-2769883865 INTERCHANGEABLE
Gasket
Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.)
5825-00-544-590773261 INTERCHANGEABLE
Adapter,rod End
L3harris Technologies, Inc Div Space & Airborne Systems
6145-00-729-9270 INTERCHANGEABLE
Cable,special Purpose,electrical
5915-01-048-87917326-1 INTERCHANGEABLE
Filter,radio Frequency Interfere
A. T. Parker, Inc. Div Solar Electronics Company
5331-01-167-044740A73681 INTERCHANGEABLE
O-Ring
Stewart & Stevenson Power Products Llc
3120-01-208-6826 INTERCHANGEABLE
Bearing,sleeve
5430-01-383-572373261 INTERCHANGEABLE
Tank,pressure
Raytheon Company Div Rmd Strategic
Cross-Reference Index
Part NumberManufacturer
73-68-1 Cooper Industries Inc Flow Control Div (USA)
73-68-1 PRIMARY Flowserve Corporation Div Flowserve Us Inc (USA)
73-26-1 Cooper Industries Inc Flow Control Div (USA)
Related Parts
5360-00-291-1193INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5330-00-353-2769INTERCHANGEABLE
GASKET
883865
5825-00-544-5907INTERCHANGEABLE
ADAPTER,ROD END
73261
6145-00-729-9270INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
5915-01-048-8791INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
7326-1
5331-01-167-0447INTERCHANGEABLE
O-RING
40A73681
3120-01-208-6826INTERCHANGEABLE
BEARING,SLEEVE
5430-01-383-5723INTERCHANGEABLE
TANK,PRESSURE
73261

Frequently Asked Questions

What is NSN 4820-00-840-1421?

NSN 4820-00-840-1421 is a Valve,regulating,fluid Pressure, manufactured by Flowserve Corporation Div Flowserve Us Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-840-1421?

NSN 4820-00-840-1421 has 3 cross-referenced part numbers: 73-68-1 (Cooper Industries Inc Flow Control Div), 73-68-1 (Flowserve Corporation Div Flowserve Us Inc), 73-26-1 (Cooper Industries Inc Flow Control Div).

What NSN replaces 4820-00-840-1421?

There are 8 known substitutes for 4820-00-840-1421: 5360-00-291-1193, 5330-00-353-2769, 5825-00-544-5907 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 73-68-1?

Key specifications for 73-68-1: Body Style: STRAIGHT THRU; Media for Which Designed: AIR; First End Style Designator: PLAIN; Regulation Type: AUTOMATIC SINGLE STAGE. 15 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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