PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50194Valve,plug

R & M Energy Systems Tomball P · NSN 4820-00-287-4419 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-287-4419 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-287-4419. Primary manufacturer part number: 50194.
Features
  • Valve,plug — FSC 4820
  • Connection Type: THREADED INTERNAL PIPE FIRST END
  • Thread Quantity Per Inch: 11-1/2 FIRST END
  • Valve Operation Method: MANUAL
  • Connection Style: PLAIN,OPTIONAL END(PIPE) FIRST END
  • Nominal Pipe Size Accommodated: 1.500 INCHES FIRST END IN
  • Flow Style: TWO-WAY TWO PORT 90 DEGREE PLUG TURN
  • Features Provided: NONADJUSTABLE ROTATION
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,plug, cataloged under National Stock Number 4820-00-287-4419, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is R & M Energy Systems Tomball P. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-287-4419
Primary Part Number50194
Item NameValve,plug
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerR & M Energy Systems Tomball P
StatusACTIVE
Connection TypeTHREADED INTERNAL PIPE FIRST END
Thread Quantity Per Inch11-1/2 FIRST END
Valve Operation MethodMANUAL
Connection StylePLAIN,OPTIONAL END(PIPE) FIRST END
Nominal Pipe Size Accommodated1.500 INCHES FIRST END IN
Flow StyleTWO-WAY TWO PORT 90 DEGREE PLUG TURN
Features ProvidedNONADJUSTABLE ROTATION
Nominal Thread Size1.500 INCHES FIRST END IN
Operating Pressure25.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Thread Series DesignatorNPT FIRST END
Thread DirectionRIGHT-HAND FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5330-00-291-9643250120 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5950-00-902-7735 INTERCHANGEABLE
Coil,radio Frequency
5360-00-981-016750-194 INTERCHANGEABLE
Spring,helical,torsion
Motorola Solutions Danmark A/s
6210-01-054-222550194 INTERCHANGEABLE
Lens Assembly
L3 Technologies, Inc. Div L3 Keo
4820-01-122-1560 INTERCHANGEABLE
Valve,plug
5315-01-213-7073N50194 INTERCHANGEABLE
Pin,straight,headed
Leslie Controls, Inc. Dba Leslie Controls Inc
4810-01-219-656350194 INTERCHANGEABLE
Seat,valve
Jetstream of Houston, Llp Dba Jetstream of Houston Llp
5305-01-394-0316 INTERCHANGEABLE
Thumbscrew
4470-01-466-0671 INTERCHANGEABLE
Threaded Bushing
5315-01-595-131450194 INTERCHANGEABLE
Pin,spring
American Apex Corporation
Cross-Reference Index
Part NumberManufacturer
5131660 Acf Industries Inc (USA)
50194 PRIMARY R & M Energy Systems Tomball P (USA)
3132165 R & M Energy Systems Tomball P (USA)
399554 Naval Ship Systems Command (USA)
Related Parts
5330-00-291-9643INTERCHANGEABLE
SEAL,PLAIN ENCASED
250120
5950-00-902-7735INTERCHANGEABLE
COIL,RADIO FREQUENCY
5360-00-981-0167INTERCHANGEABLE
SPRING,HELICAL,TORSION
50-194
6210-01-054-2225INTERCHANGEABLE
LENS ASSEMBLY
50194
4820-01-122-1560INTERCHANGEABLE
VALVE,PLUG
5315-01-213-7073INTERCHANGEABLE
PIN,STRAIGHT,HEADED
N50194
4810-01-219-6563INTERCHANGEABLE
SEAT,VALVE
50194
5305-01-394-0316INTERCHANGEABLE
THUMBSCREW
4470-01-466-0671INTERCHANGEABLE
THREADED BUSHING
5315-01-595-1314INTERCHANGEABLE
PIN,SPRING
50194

Frequently Asked Questions

What is NSN 4820-00-287-4419?

NSN 4820-00-287-4419 is a Valve,plug, manufactured by R & M Energy Systems Tomball P, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-287-4419?

NSN 4820-00-287-4419 has 4 cross-referenced part numbers: 5131660 (Acf Industries Inc), 50194 (R & M Energy Systems Tomball P), 3132165 (R & M Energy Systems Tomball P), 399554 (Naval Ship Systems Command).

What NSN replaces 4820-00-287-4419?

There are 10 known substitutes for 4820-00-287-4419: 5330-00-291-9643, 5950-00-902-7735, 5360-00-981-0167 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50194?

Key specifications for 50194: Connection Type: THREADED INTERNAL PIPE FIRST END; Thread Quantity Per Inch: 11-1/2 FIRST END; Valve Operation Method: MANUAL; Connection Style: PLAIN,OPTIONAL END(PIPE) FIRST END. 11 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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