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Ribbed Shoulder Bolt

Model / MPN: 81468 | NSN: 5306-00-275-4078
ITAR Registered seal

An externally threaded fastener whose threaded portion is of one 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.

Product Details
NATO Stock Number
5306-00-275-4078
Sold in multiples of
DEMIL
NO
Thread Class
3a
Thread Direction
Right-hand
Thread Length
1.250 inches
Fastener Length
2.531 inches
Head Style
Flat chamfer
Head Diameter
1.188 inches
Head Height
0.312 inches
Shoulder Length
0.875 inches first shoulder
Rib Major Diameter
Between 0.870 inches and 0.880 inches
Rib Length
0.750 inches
Distance From Largest Diameter Of Bearing Surface Of Head To Ribs
0.125 inches
Rib Minor Diameter
Between 0.835 inches and 0.840 inches
Rib Quantity
25
Thread Diameter
0.750 inches
Features Provided
Casehardened
Thready Qty Per Inch (tpi)
16
Shoulder Shape
Round first shoulder
Material
Steel
Material Specification
Sae grade 8 assn standard single material response
Thread Series Designator
Unf
81468 Series Parts

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81468 Cross Reference
  • PGF9391
  • PGF9391