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NSN 5305-01-091-7925

Panel Assembly Fastener

About this product

Between 1.764 inches and 1.810 inches fastener length, flat countersunk head style, between 0.625 inches and 0.635 inches head diameter, shoulder diameter: 0.3422 inches first shoulder and 0.3432 inches first shoulder.

Manufacturer part number ST3M547-5-21 for national stock number 5305010917925.

Datasheet

  • Product description

    Shoulder Screw NSN 5305-01-091-7925.

  • MPN or Model

    ST3M547-5-21

  • NMF (National Motor Freight)
    093486 - Bolts, Nuts Or Screws, NOI (sub 3)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.492 inches and 0.558 inches
  • Fastener Length
    Between 1.764 inches and 1.810 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.625 inches and 0.635 inches
  • Shoulder Diameter
    0.3422 inches first shoulder and 0.3432 inches first shoulder
  • Shoulder Length
    1.182 inches first shoulder and 1.202 inches first shoulder
  • Internal Drive Style
    High-torque
  • Thread Diameter
    0.312 inches
  • Thready Qty Per Inch (tpi)
    24
  • Countersink Angle
    Between 90.0 degrees and 110.0 degrees
  • Shoulder Shape
    Round first shoulder
  • Material
    Steel
  • Material Specification
    23-105 fscm 76301 mfr ref single material response
  • Surface Treatment
    Cadmium
  • Surface Treatment Specification
    Ps 13145 fscm 76301 mfr ref single treatment response
  • Thread Series Designator
    Unjf
More from these suppliers
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 5305010917925

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
ST3M547-5-21 Boeing Company, The
66904H5-21 Sps Technologies, Llc
HT308-5-21 Hi-shear Corporation
HT308-5-21 Lisi Aerospace Canada Corp
66904H5-21 Sps Technologies, Llc
Stock Check
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