NSN 4730-00-256-8588
Part Details | PIPE FLANGE
4730-00-256-8588 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).
Alternate Parts: M4340DC, M4340-DC, 13D020, 13-D-020, SK13113, 5732062652ITEM30, 57-3206-2652ITEM30, 5732062652, 57-3206-2652, 25940, MILF20668, MIL-F-20668, 4730-00-256-8588, 00-256-8588, 4730002568588, 002568588
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
47 | JAN 01, 1961 | 00-256-8588 | 03798 ( FLANGE, PIPE ) |
REFERENCE DRAWINGS & PICTURES
PLAIN FACE, RAISED NECK

ROUND, ONE BOLT HOLE CIRCLE

Cross Reference | NSN 4730-00-256-8588
Part Number | Cage Code | Manufacturer |
---|---|---|
M4340-DC | 0ASY6 | DERBYSHIRE MARINE PRODUCTS, LLC |
13-D-020 | 0ASY6 | DERBYSHIRE MARINE PRODUCTS, LLC |
SK13113 | 0ASY6 | DERBYSHIRE MARINE PRODUCTS, LLC |
57-3206-2652ITEM30 | 29236 | M-D PNEUMATICS INC |
57-3206-2652 | 29236 | M-D PNEUMATICS INC |
25940 | 29236 | M-D PNEUMATICS INC |
MIL-F-20668 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
Technical Data | NSN 4730-00-256-8588
Characteristic | Specifications |
---|---|
MATERIAL | COPPER ALLOY |
STYLE DESIGNATOR | ROUND, ONE BOLT HOLE CIRCLE |
BOLT CIRCLE DIAMETER | 4.438 INCHES NOMINAL |
FLANGE DIAMETER | 5.562 INCHES NOMINAL |
BOLT HOLE DIAMETER | 0.562 INCHES NOMINAL |
BOLT HOLE QUANTITY | 6 |
FLANGE SECTION STYLE | PLAIN FACE, RAISED NECK |
THICKNESS | 0.562 INCHES NOMINAL |
NECK HEIGHT | 0.438 INCHES NOMINAL |
NOMINAL PIPE SIZE FOR WHICH DESIGNED | 2.000 INCHES |
SCREW THREAD SERIES DESIGNATOR | NPT |
NOMINAL THREAD SIZE | 2.000 INCHES |
THREAD QUANTITY PER INCH | 11-1/2 |
MAXIMUM OPERATING PRESSURE AND MEDIA FOR WHICH DESIGNED | 100.0 POUNDS PER SQUARE INCH STEAM |
FACE SEATING SURFACE CONDITION | MACHINED |
SPECIAL FEATURES | MATERIAL IS NICKEL-COPPER PER QQ-N-281 SPEC;2 INCH, TYPE A, CLASS 1 |
NONDEFINITIVE SPEC/STD DATA | A TYPE AND 1 CLASS |