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Ribbed Shoulder Bolt

Model / MPN: MS51948-3 | NSN: 5306-00-787-7100
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
5306-00-787-7100
Sold in multiples of
50 EA
DEMIL
NO
Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 1.380 inches and 1.410 inches
Fastener Length
2.450 inches
Head Style
Flat chamfer
Head Diameter
1.000 inches
Head Height
0.200 inches
Shoulder Diameter
0.520 inches first shoulder and 0.525 inches first shoulder
Shoulder Length
0.780 inches first shoulder
Rib Major Diameter
Between 0.550 inches and 0.560 inches
Rib Length
0.380 inches
Thread Diameter
0.437 inches
Thready Qty Per Inch (tpi)
20
Shoulder Shape
Round first shoulder
Material
Steel
Surface Treatment
Cadmium and chromate
Thread Series Designator
Unf
MS51948 Series Parts

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MS51948-3 Cross Reference
  • 10924606
  • 49081