PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R50353Cover,priming Valve

Waterous Company · NSN 4210-00-256-2823 · FSC 4210 · No Item Name Available
Verified by PartsTable
NSN 4210-00-256-2823 — this item is cataloged by the U.S. Government under National Stock Number 4210-00-256-2823. Primary manufacturer part number: R50353.
Features
  • Cover,priming Valve — FSC 4210
  • General Characteristics Item Description: FOAM AND WATER
  • 2 verified cross-references
  • Primary manufacturer: Waterous Company
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Cover,priming Valve, cataloged under National Stock Number 4210-00-256-2823, is classified within Federal Supply Class 4210 (No Item Name Available) of the Fire Fighting, Rescue, and Safety Equipment group. The primary manufacturer of record is Waterous Company. Government technical data includes 1 verified specification, 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4210-00-256-2823
Primary Part NumberR50353
Item NameCover,priming Valve
FSC / FSG4210 / 42 — No Item Name Available
ManufacturerWaterous Company
StatusACTIVE
General Characteristics Item DescriptionFOAM AND WATER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4730-00-010-3875 INTERCHANGEABLE
Plug,pipe
4520-00-169-641350353 INTERCHANGEABLE
Heating Element,electrical,nonim
Wells Mfg Co
3020-00-407-6162SCB70620 INTERCHANGEABLE
Gear,worm Wheel
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5930-00-515-360450353 INTERCHANGEABLE
Switch,rotary
Alliant Techsystems Operations Llc Div Defense Electronic Systems
4910-01-360-80931U6678 INTERCHANGEABLE
Fixture,injector Ad
Caterpillar Inc Div Caterpillar Defense
1377-01-525-36964839 INTERCHANGEABLE
Cartridge,powder Actuated Tool
Hilti Inc
7910-01-662-719450353 INTERCHANGEABLE
Cleaner,vacuum,electric
Emerson Electric Co Ridgid/kollman Div
Cross-Reference Index
Part NumberManufacturer
R50353 PRIMARY Waterous Company (USA)
50353 Waterous Company (USA)
Related Parts
4730-00-010-3875INTERCHANGEABLE
PLUG,PIPE
4520-00-169-6413INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
50353
3020-00-407-6162INTERCHANGEABLE
GEAR,WORM WHEEL
SCB70620
5930-00-515-3604INTERCHANGEABLE
SWITCH,ROTARY
50353
4910-01-360-8093INTERCHANGEABLE
FIXTURE,INJECTOR AD
1U6678
1377-01-525-3696INTERCHANGEABLE
CARTRIDGE,POWDER ACTUATED TOOL
4839
7910-01-662-7194INTERCHANGEABLE
CLEANER,VACUUM,ELECTRIC
50353

Frequently Asked Questions

What is NSN 4210-00-256-2823?

NSN 4210-00-256-2823 is a Cover,priming Valve, manufactured by Waterous Company, classified under FSC 4210 (No Item Name Available). Status: active.

What are the part numbers for NSN 4210-00-256-2823?

NSN 4210-00-256-2823 has 2 cross-referenced part numbers: R50353 (Waterous Company), 50353 (Waterous Company).

What NSN replaces 4210-00-256-2823?

There are 7 known substitutes for 4210-00-256-2823: 4730-00-010-3875, 4520-00-169-6413, 3020-00-407-6162 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of R50353?

Key specifications for R50353: End Item Identification: TRUCK,FIRE FIGHTING,MODELS BA/BAW/BAM/BAMW; General Characteristics Item Description: FOAM AND WATER. 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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