PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1215Valve,float

A. O. Smith Corporation Dba a O Smith Corp · NSN 4820-00-288-8335 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-288-8335 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-288-8335. Primary manufacturer part number: 1215.
Features
  • Valve,float — FSC 4820
  • Nominal Thread Size: 4.000 INCHES ALL ENDS IN
  • Material: COPPER ALLOY STEM
  • Media for Which Designed: WATER, FRESH SINGLE RESPONSE
  • Thread Series Designator: NPT ALL ENDS
  • Style Designator: ANGLE
  • Material: COPPER ALLOY FLOW CONTROL DEVICE
  • Material: IRON CAST BODY
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Stem construction
General Description

The Valve,float, cataloged under National Stock Number 4820-00-288-8335, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is A. O. Smith Corporation Dba a O Smith Corp. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-288-8335
Primary Part Number1215
Item NameValve,float
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerA. O. Smith Corporation Dba a O Smith Corp
StatusACTIVE
Nominal Thread Size4.000 INCHES ALL ENDS IN
MaterialCOPPER ALLOY STEM
Media for Which DesignedWATER, FRESH SINGLE RESPONSE
Thread Series DesignatorNPT ALL ENDS
Style DesignatorANGLE
MaterialCOPPER ALLOY FLOW CONTROL DEVICE
MaterialIRON CAST BODY
Renewable Seat Ring TypeTHREADED
MaterialCOPPER ALLOY SEAT
Thread DirectionRIGHT-HAND ALL ENDS
Bonnet Attachment MethodBOLTED
Features ProvidedBONNET PACKING
Thread Quantity Per Inch8 ALL ENDS
Nominal Pipe Size Accommodated4.000 INCHES ALL ENDS IN
Valve Operation MethodHYDRAULIC
Connection StylePLAIN,OPTIONAL END(PIPE) ALL ENDS
Operating Pressure125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Flow Control DeviceDISK
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3110-00-554-3277 INTERCHANGEABLE
Bearing,ball,annular
Cross-Reference Index
Part NumberManufacturer
1215 A. O. Smith Corporation Dba a O Smith Corp (USA)
DWGAL65031 O. C. Keckley Company (USA)
FIG1110-R/3100-03 Muesco Inc Dba Muesco Mallay Inc (USA)
Y524835 A. O. Smith Corporation Dba a O Smith Corp (USA)
60 White Consolidated Industries Inc Shade-Davis Controls-Specialty Valve and Controls Div (USA)
N077 O. C. Keckley Company (USA)
1100 Muesco Inc Dba Muesco Mallay Inc (USA)
77ANGLE-SCREWED-4 IN O. C. Keckley Company (USA)
Related Parts
3110-00-554-3277INTERCHANGEABLE
BEARING,BALL,ANNULAR

Frequently Asked Questions

What is NSN 4820-00-288-8335?

NSN 4820-00-288-8335 is a Valve,float, manufactured by A. O. Smith Corporation Dba a O Smith Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-288-8335?

NSN 4820-00-288-8335 has 8 cross-referenced part numbers: 1215 (A. O. Smith Corporation Dba a O Smith Corp), DWGAL65031 (O. C. Keckley Company), FIG1110-R/3100-03 (Muesco Inc Dba Muesco Mallay Inc), Y524835 (A. O. Smith Corporation Dba a O Smith Corp), 60 (White Consolidated Industries Inc Shade-Davis Controls-Specialty Valve and Controls Div) and 3 more.

What NSN replaces 4820-00-288-8335?

There is 1 known substitute for 4820-00-288-8335: 3110-00-554-3277. Verify interchangeability with system specifications before substitution.

What are the specifications of 1215?

Key specifications for 1215: Nominal Thread Size: 4.000 INCHES ALL ENDS IN; Material: COPPER ALLOY STEM; Media for Which Designed: WATER, FRESH SINGLE RESPONSE; Thread Series Designator: NPT ALL ENDS. 19 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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