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Internal Wrenching Bolt

Model / MPN: 440370-42 | NSN: 5306-01-015-4968
ITAR Registered seal

An externally threaded fastener whose threaded portion is of one diameter, no. 10 (0.190 in.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also screw, cap, socket head. Excludes setscrew; screw, shoulder; bolt, shoulder; screw, externally relieved body; bolt, externally relieved body; and screw, machine.

Product Details
NATO Stock Number
5306-01-015-4968
Sold in multiples of
50 EA
DEMIL
NO
Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.300 inches
Fastener Length
0.734 inches
Head Style
Flat chamfer
Head Diameter
Between 0.303 inches and 0.312 inches
Head Height
Between 0.185 inches and 0.190 inches
Hole Diameter
0.063 inches
First Diameter From Head
Between 0.145 inches and 0.155 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
Between 0.434 inches and 0.466 inches
Distance From Largest Bearing Surface Of Head To End Of Fourth Diameter
Between 0.156 inches and 0.159 inches
Internal Drive Style
Hexagon
Thread Diameter
0.190 inches
Width Across Flats
0.159 inches
Hole Quantity
6
Hole Type
Drilled
Thready Qty Per Inch (tpi)
32
Hole Configuration Style
Round
Surface Finish
125.0 microinches
Material
Steel
Material Specification
966517-4, fscm 93835 mfr ref single material response
Thread Series Designator
Unf
440370 Series Parts
Solicitations
Solicitation Description Qty UOM Close Date
SPE4A517T6761 Bolt, Internal Wrenc 407 EA 01/09/2017
SPE4A517TB681 Bolt, Internal Wrenc 800 EA 02/13/2017
SPE4A517TS584 Bolt, Internal Wrenc 34 PG 06/05/2017
SPE4A517TV169 Bolt, Internal Wrenc 111 PG 06/16/2017
SPE4A518T117X Bolt, Internal Wrenc 119 PG 01/02/2018
SPE4A518T882G Bolt, Internal Wrenc 14 PG 05/31/2018
SPE4A518T15J1 Bolt, Internal Wrenc 1533 EA 08/02/2018
SPE4A619T71Q3 Bolt, Internal Wrenc 329 EA 09/26/2019

Pricing and Availability

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440370-42 Cross Reference
  • 3293089-1
  • 440370-42