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National Stock Number:
5306-00-099-7323
Federal Supply Class:
5306
National Item Identification Number:
000997323
Description:
BOLT,RIBBED SHOULDER
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. It has a series of longitudinal ribs, splines or serrations on all or a part of the shoulder. The minor diameter of the ribs must be greater than the major diameter of the threads. See also BOLT, RIBBED NECK.
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Manufacturer Information:
| 123CVM10203-511 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 123CVM10203-511 | 79RG9 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.396 INCHES MINIMUM | | FASTENER LENGTH | 3.374 INCHES NOMINAL | | MATERIAL | STEEL COMP 410 OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND | | 45.0 ROCKWELL C MAXIMUM OVERALL | | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH | | HEAD DIAMETER | 0.640 INCHES NOMINAL | | HEAD HEIGHT | 0.187 INCHES MINIMUM AND | | 0.203 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.553 INCHES MINIMUM AND | | 0.564 INCHES MAXIMUM | | SHOULDER SHAPE | RIBBED FIRST SHOULDER | | SHOULDER DIAMETER | 0.3720 INCHES MINIMUM AND | | 0.3740 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 1.334 INCHES NOMINAL FIRST SHOULDER | | RIB QUANTITY | 36 | | RIB MAJOR DIAMETER | 0.3720 INCHES MINIMUM AND | | 0.3740 INCHES MAXIMUM | | RIB LENGTH | 1.334 INCHES NOMINAL | | DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS | 0.228 INCHES NOMINAL | | RIB INCLUDED ANGLE | 45.0 DEGREES NOMINAL | | RIB MINOR DIAMETER | 0.3457 INCHES NOMINAL | | SPECIAL FEATURES | INDEX MARK ON HEAD INDICATES LOCATION OF 3 SHOULDER RIBS REMOVED | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 79RG9 | | DESIGN CONTROL REFERENCE | 123CVM10203-511 |
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