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Pipe Flange

Model / MPN: 87742-3103 | NSN: 4730-01-148-7402
ITAR Registered seal

An item solid or split into halves, having a threaded or unthreaded hole for the purpose of connecting or retaining a pipe, tube, or hose fitting. The face of the flange may be smooth, grooved, or serrated and may be drilled for connecting bolts or studs. If the item is unthreaded, the pipe or tube may be retained by welding, brazing, compression, or the like. Excludes flange, pipe, blind; ferrule, grooved clamp coupling; and adapter (as modified).

Product Details
NATO Stock Number
Sold in multiples of
1 EA
Bolt Circle Diameter
7.500 inches
Flange Diameter
9.000 inches
0.940 inches
Pipe Size For Which Designed
4.000 inches
Bolt Hole Quantity
Bolt Hole Diameter
0.750 inches
Raised Face Height
0.062 inches
Raised Face Diameter
5.310 inches
Neck Height
1.216 inches
Flange Section Style
Raised face, welding neck
Face Seating Surface Condition
Maximum Operating Pressure And Media For Which Designed
150.0 pounds per square inch any acceptable
Maximum Operating Tempurature And Media For Which Designed
500.0 degrees fahrenheit any acceptable
Part Name Assigned By Controlling Agency
Style Designator
Round, one bolt hole circle
Specification Data
81349-mil-f-18180 government specification
Nondefinitive Specification/std Data
1 type and a style

Pricing and Availability

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87742-3103 Cross Reference
  • ASME B16.5
  • 514-4645297 ITEM FL3
  • 12-00-0349
  • M18180/1-010A01D
  • MIL-F-18180
  • MIL-5-18180
  • 514-4645297