NSN 5305-00-151-8660

Panel Assembly Fastener

About this product

Half of top surface of head painted orange.

Manufacturer part number BM19070-921 for national stock number 5305001518660.


  • Product description

    Shoulder Screw NSN 5305-00-151-8660.

  • MPN or Model


  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    093486 - Bolts, Nuts Or Screws, NOI (sub 3)
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
  • Thread Direction
  • Thread Length
    Between 0.406 inches and 0.436 inches
  • Fastener Length
    Between 1.266 inches and 1.296 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    0.357 inches
  • Shoulder Diameter
    0.254 inches first shoulder and 0.256 inches first shoulder
  • Shoulder Length
    0.796 inches first shoulder and 0.826 inches first shoulder
  • Internal Drive Style
  • Thread Diameter
    0.250 inches
  • Thready Qty Per Inch (tpi)
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Shoulder Shape
    Round first shoulder
  • Material
    Steel comp 4037
  • Surface Treatment
    Cadmium and chromate
  • Surface Treatment Specification
    Qq-p-416, type 2, class 3 federal specification single treatment response
  • Thread Series Designator
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Shoulder Screw

An externally threaded fastener whose threaded portion is of one nominal 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) nominal 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.

Mechanic Bill explains Panel Assembly Fastener

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NSN 5305001518660

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
BM19070-921 Huck International, Inc.
BM19070-4-921 Huck International, Inc.
PBF1286-921 Sps Technologies, Llc
HP6551P4-921 Heartland Precision Fasteners, Inc.
GS551P4-921 Northrop Grumman Systems Corporation
2R1863-921 Aero Mechanical Fastening Systems
GS551P-4921 Aero Mechanical Fastening Systems
2R1465-13 Bfgoodrich Co The
BM19070-4-921 Huck Intl Inc
BM19070-921 Huck Intl Inc
MA6551P4-921 Abounding Security Inc
GS551P-4921 Abounding Security Inc
Stock Check
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