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Shoulder Screw

Model / MPN: 390 5101 | NSN: 5305-01-162-6001
ITAR Registered seal

An externally threaded fastener whose threaded portion is of one diameter, no 0 (0.060 in.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) diameter. No. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use screw, externally relieved body. For items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. Excludes bolt, internal wrenching and screw, cap, socket head.

Product Details
NATO Stock Number
Sold in multiples of
25 EA
Thread Direction
Thread Length
Between 9.5 millimeters and 12.0 millimeters
Fastener Length
22.00 millimeters
Head Style
Flat chamfer
Head Diameter
16.0 millimeters
Head Height
5.5 millimeters
Shoulder Diameter
11.82 millimeters first shoulder and 12.00 millimeters first shoulder
Shoulder Length
9.9 millimeters first shoulder and 10.1 millimeters first shoulder
Internal Drive Style
End Application
Hemtt family (heavy expanded mobility tactical trucks); 2320-01-097-0260 hiab crane (hemtt)
Thread Diameter
8.0 millimeters
Width Across Flats
Between 5.01 millimeters and 5.13 millimeters
Thread Pitch In Millimeters
Shoulder Shape
Round first shoulder
Thread Series Designator

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390 5101 Cross Reference
  • 10524323
  • 390-5101
  • 2BA314
  • 2BA314