PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

47100Valve,vent

Stewart-Warner Alemite Sales Co Inc · NSN 4820-00-516-4981 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-516-4981 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-516-4981. Primary manufacturer part number: 47100.
Features
  • Valve,vent — FSC 4820
  • Thread Series Designator: NPT FIRST END
  • Operating Pressure: 80.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Nominal Pipe Size Accommodated: 0.125 INCHES FIRST END IN
  • Connection Type: THREADED EXTERNAL PIPE FIRST END
  • Connection Style: PLAIN (PIPE) FIRST END
  • Thread Direction: RIGHT-HAND FIRST END
  • Thread Quantity Per Inch: 27 FIRST END
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,vent, cataloged under National Stock Number 4820-00-516-4981, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Stewart-Warner Alemite Sales Co Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-516-4981
Primary Part Number47100
Item NameValve,vent
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerStewart-Warner Alemite Sales Co Inc
StatusACTIVE
Thread Series DesignatorNPT FIRST END
Operating Pressure80.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Pipe Size Accommodated0.125 INCHES FIRST END IN
Connection TypeTHREADED EXTERNAL PIPE FIRST END
Connection StylePLAIN (PIPE) FIRST END
Thread DirectionRIGHT-HAND FIRST END
Thread Quantity Per Inch27 FIRST END
Media for Which DesignedAIR SINGLE RESPONSE
Nominal Thread Size0.125 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5120-00-152-2286 INTERCHANGEABLE
Socket Set,socket Wrench
4820-00-202-5632 INTERCHANGEABLE
Valve,safety Relief
1650-00-260-6850 INTERCHANGEABLE
Cylinder Assembly,actuating,line
5120-00-278-24233035 INTERCHANGEABLE
Crimping Tool,terminal,hand
Toolmate Inc
3120-01-122-023747100 INTERCHANGEABLE
Bearing,washer Cams
Sabre Engines Ltd
2540-01-182-737947100 INTERCHANGEABLE
Belt,vehicular Safety
Indiana Mills & Manufacturing Inc Dba Indiana Mills & Manufacturing Inc
4820-01-335-721347100 INTERCHANGEABLE
Valve,safety Relief
Certified Power Inc Driveline Div
5330-01-674-623547100 INTERCHANGEABLE
Gasket
Milcut, Inc. Dba Milcut Inc
Cross-Reference Index
Part NumberManufacturer
47100 Stewart-Warner Alemite Sales Co Inc (USA)
Related Parts
5120-00-152-2286INTERCHANGEABLE
SOCKET SET,SOCKET WRENCH
4820-00-202-5632INTERCHANGEABLE
VALVE,SAFETY RELIEF
1650-00-260-6850INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
5120-00-278-2423INTERCHANGEABLE
CRIMPING TOOL,TERMINAL,HAND
3035
3120-01-122-0237INTERCHANGEABLE
BEARING,WASHER CAMS
47100
2540-01-182-7379INTERCHANGEABLE
BELT,VEHICULAR SAFETY
47100
4820-01-335-7213INTERCHANGEABLE
VALVE,SAFETY RELIEF
47100
5330-01-674-6235INTERCHANGEABLE
GASKET
47100

Frequently Asked Questions

What is NSN 4820-00-516-4981?

NSN 4820-00-516-4981 is a Valve,vent, manufactured by Stewart-Warner Alemite Sales Co Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-516-4981?

NSN 4820-00-516-4981 has 1 cross-referenced part number: 47100 (Stewart-Warner Alemite Sales Co Inc).

What NSN replaces 4820-00-516-4981?

There are 8 known substitutes for 4820-00-516-4981: 5120-00-152-2286, 4820-00-202-5632, 1650-00-260-6850 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 47100?

Key specifications for 47100: Thread Series Designator: NPT FIRST END; Operating Pressure: 80.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Nominal Pipe Size Accommodated: 0.125 INCHES FIRST END IN; Connection Type: THREADED EXTERNAL PIPE FIRST END. 9 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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