PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

0393020 3/8INValve,ball

Watts Regulator Company · NSN 4820-01-431-9090 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-431-9090 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-431-9090. Primary manufacturer part number: 0393020 3/8IN.
Features
  • Valve,ball — FSC 4820
  • Thread Series Designator: NPT ALL ENDS
  • Material: BRONZE BODY
  • Connection Type: THREADED EXTERNAL PIPE ALL ENDS
  • Connection Style: PLAIN (PIPE) ALL ENDS
  • Style Designator: STRAIGHT THRU
  • 5 verified cross-references
  • Primary manufacturer: Watts Regulator Company
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Bronze Body construction
General Description

The Valve,ball, cataloged under National Stock Number 4820-01-431-9090, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Watts Regulator Company. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-431-9090
Primary Part Number0393020 3/8IN
Item NameValve,ball
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWatts Regulator Company
StatusACTIVE
Thread Series DesignatorNPT ALL ENDS
MaterialBRONZE BODY
Connection TypeTHREADED EXTERNAL PIPE ALL ENDS
Connection StylePLAIN (PIPE) ALL ENDS
Style DesignatorSTRAIGHT THRU
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4820-00-052-4647MSSSP110-TY 2 CL A ST 3 SZ .375 INTERCHANGEABLE
Valve,ball
Sae International Dba Sae International
4820-00-902-28294210T .75IN INTERCHANGEABLE
Valve,ball
William Powell Company, the Dba Powell Valve Div the Starflo Corporation
4820-01-192-5819LFB6080G2 1/4IN INTERCHANGEABLE
Valve,ball
Watts Regulator Company
Cross-Reference Index
Part NumberManufacturer
PC1212 Parmatic Pollution Control Corporation Dba Parmatic Filter (USA)
B-6000 3/8IN Westwater Supply Corp (USA)
PC1212-2 Parmatic Pollution Control Corporation Dba Parmatic Filter (USA)
0393020 3/8IN PRIMARY Watts Regulator Company (USA)
PC1212-2 Parmatic Esplen Ltd (GBR)
Related Parts
4820-00-052-4647INTERCHANGEABLE
VALVE,BALL
MSSSP110-TY 2 CL A ST 3 SZ .375
4820-00-902-2829INTERCHANGEABLE
VALVE,BALL
4210T .75IN
4820-01-192-5819INTERCHANGEABLE
VALVE,BALL
LFB6080G2 1/4IN

Frequently Asked Questions

What is NSN 4820-01-431-9090?

NSN 4820-01-431-9090 is a Valve,ball, manufactured by Watts Regulator Company, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-431-9090?

NSN 4820-01-431-9090 has 5 cross-referenced part numbers: PC1212 (Parmatic Pollution Control Corporation Dba Parmatic Filter), B-6000 3/8IN (Westwater Supply Corp), PC1212-2 (Parmatic Pollution Control Corporation Dba Parmatic Filter), 0393020 3/8IN (Watts Regulator Company), PC1212-2 (Parmatic Esplen Ltd).

What NSN replaces 4820-01-431-9090?

There are 3 known substitutes for 4820-01-431-9090: 4820-00-052-4647, 4820-00-902-2829, 4820-01-192-5819. Verify interchangeability with system specifications before substitution.

What are the specifications of 0393020 3/8IN?

Key specifications for 0393020 3/8IN: Thread Series Designator: NPT ALL ENDS; End Item Identification: W/S CODE-STRATEGIC SEALIFT CONVERSION SHIPS CLASS; Material: BRONZE BODY; Connection Type: THREADED EXTERNAL PIPE ALL ENDS. 6 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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