PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50290-1Valve,bleeder,hydraulic System

Fisica Applied Technologies, Inc. Div Randtron Antenna Systems · NSN 4820-01-341-4817 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-341-4817 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-341-4817. Primary manufacturer part number: 50290-1.
Features
  • Valve,bleeder,hydraulic System — FSC 4820
  • Valve Operation Method: MANUAL
  • Furnished Items and Quantity: 1 CAP AND 1 CHAIN
  • Connection Style: PLAIN (TUBE) FIRST END
  • Style Designator: STRAIGHT THRU
  • Connection Type: THREADED EXTERNAL TUBE FIRST END
  • 2 verified cross-references
  • Primary manufacturer: Fisica Applied Technologies, Inc. Div Randtron Antenna Systems
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,bleeder,hydraulic System, cataloged under National Stock Number 4820-01-341-4817, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Fisica Applied Technologies, Inc. Div Randtron Antenna Systems. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-341-4817
Primary Part Number50290-1
Item NameValve,bleeder,hydraulic System
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerFisica Applied Technologies, Inc. Div Randtron Antenna Systems
StatusACTIVE
Valve Operation MethodMANUAL
Furnished Items and Quantity1 CAP AND 1 CHAIN
Connection StylePLAIN (TUBE) FIRST END
Style DesignatorSTRAIGHT THRU
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5998-00-327-470450290 INTERCHANGEABLE
Circuit Card Assembly
Alliant Techsystems Operations Llc Div Defense Electronic Systems
5965-00-860-895461B21712 INTERCHANGEABLE
Cushion,ear
Air Force Lifecycle Management Center Electronic Components (aflcmc/ezss)
5950-00-953-1566SM-B-528529 INTERCHANGEABLE
Reactor
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3610-01-300-104850290 INTERCHANGEABLE
Easel Electronic
Ricoh Americas Corporation
5950-01-399-4947502901 INTERCHANGEABLE
Transformer,power
Electronic Transformer Corp Div Electronic Transformer Corporation
5331-01-526-5361 INTERCHANGEABLE
O-Ring
Cross-Reference Index
Part NumberManufacturer
50290-1 PRIMARY Fisica Applied Technologies, Inc. Div Randtron Antenna Systems (USA)
50290 Fisica Applied Technologies, Inc. Div Randtron Antenna Systems (USA)
Related Parts
5998-00-327-4704INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
50290
5965-00-860-8954INTERCHANGEABLE
CUSHION,EAR
61B21712
5950-00-953-1566INTERCHANGEABLE
REACTOR
SM-B-528529
3610-01-300-1048INTERCHANGEABLE
EASEL ELECTRONIC
50290
5950-01-399-4947INTERCHANGEABLE
TRANSFORMER,POWER
502901
5331-01-526-5361INTERCHANGEABLE
O-RING

Frequently Asked Questions

What is NSN 4820-01-341-4817?

NSN 4820-01-341-4817 is a Valve,bleeder,hydraulic System, manufactured by Fisica Applied Technologies, Inc. Div Randtron Antenna Systems, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-341-4817?

NSN 4820-01-341-4817 has 2 cross-referenced part numbers: 50290-1 (Fisica Applied Technologies, Inc. Div Randtron Antenna Systems), 50290 (Fisica Applied Technologies, Inc. Div Randtron Antenna Systems).

What NSN replaces 4820-01-341-4817?

There are 6 known substitutes for 4820-01-341-4817: 5998-00-327-4704, 5965-00-860-8954, 5950-00-953-1566 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50290-1?

Key specifications for 50290-1: Valve Operation Method: MANUAL; Furnished Items and Quantity: 1 CAP AND 1 CHAIN; Connection Style: PLAIN (TUBE) FIRST END; Style Designator: STRAIGHT THRU. 5 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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