PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31-38Retainer,seat,valve

Rix Industries · NSN 4820-01-369-4784 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-369-4784 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-369-4784. Primary manufacturer part number: 31-38.
Features
  • Retainer,seat,valve — FSC 4820
  • Material: STEEL COMP 303
  • Valve Design Control Activity: 28953
  • 7 verified cross-references
  • Primary manufacturer: Rix Industries
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Comp 303 construction
General Description

The Retainer,seat,valve, cataloged under National Stock Number 4820-01-369-4784, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Rix Industries. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-369-4784
Primary Part Number31-38
Item NameRetainer,seat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerRix Industries
StatusACTIVE
MaterialSTEEL COMP 303
Valve Design Control Activity28953
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-155-6661 INTERCHANGEABLE
Bearing,ball,annular
3439-00-224-75343138-100 INTERCHANGEABLE
Soldering Iron,electric
Assembly Technologies International Inc.
6625-00-430-0302TFC115-100D15 INTERCHANGEABLE
Converter,static
Tdk-Lambda Americas Inc. Div High Power Division
5305-00-531-15153138 INTERCHANGEABLE
Screw,machine
L & L Boiler Maintenance Inc
3439-00-542-0169 INTERCHANGEABLE
Soldering Iron,electric
3020-00-739-0807 INTERCHANGEABLE
Ratchet Wheel
5960-00-931-698416-03-138-0A INTERCHANGEABLE
Electron Tube
Ballantine Laboratories Inc
6680-00-947-0648DC3138 INTERCHANGEABLE
Counter,rotating
Bowmar Llc Dba Bowmar Instrument Corp
5305-00-954-5631 INTERCHANGEABLE
Screw,machine
5820-00-970-8392 INTERCHANGEABLE
Receiver,transmitte
Cross-Reference Index
Part NumberManufacturer
B5580 ITEM 6 Rix Industries (USA)
B5210 ITEM 8 Rix Industries (USA)
90548-2 Rix Industries (USA)
B5210 Rix Industries (USA)
B5580 Rix Industries (USA)
90548-2 Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (USA)
31-38 PRIMARY Rix Industries (USA)
Related Parts
3110-00-155-6661INTERCHANGEABLE
BEARING,BALL,ANNULAR
3439-00-224-7534INTERCHANGEABLE
SOLDERING IRON,ELECTRIC
3138-100
6625-00-430-0302INTERCHANGEABLE
CONVERTER,STATIC
TFC115-100D15
5305-00-531-1515INTERCHANGEABLE
SCREW,MACHINE
3138
3439-00-542-0169INTERCHANGEABLE
SOLDERING IRON,ELECTRIC
3020-00-739-0807INTERCHANGEABLE
RATCHET WHEEL
5960-00-931-6984INTERCHANGEABLE
ELECTRON TUBE
16-03-138-0A
6680-00-947-0648INTERCHANGEABLE
COUNTER,ROTATING
DC3138
5305-00-954-5631INTERCHANGEABLE
SCREW,MACHINE
5820-00-970-8392INTERCHANGEABLE
RECEIVER,TRANSMITTE
5360-01-106-1313INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
3138
5915-01-198-0541INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
905482-50

Frequently Asked Questions

What is NSN 4820-01-369-4784?

NSN 4820-01-369-4784 is a Retainer,seat,valve, manufactured by Rix Industries, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-369-4784?

NSN 4820-01-369-4784 has 7 cross-referenced part numbers: B5580 ITEM 6 (Rix Industries), B5210 ITEM 8 (Rix Industries), 90548-2 (Rix Industries), B5210 (Rix Industries), B5580 (Rix Industries) and 2 more.

What NSN replaces 4820-01-369-4784?

There are 12 known substitutes for 4820-01-369-4784: 3110-00-155-6661, 3439-00-224-7534, 6625-00-430-0302 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31-38?

Key specifications for 31-38: Material: STEEL COMP 303; Valve Design Control Activity: 28953. 2 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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