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NSN 5305-01-143-4076

Panel Assembly Fastener

About this product

Furnished with one rubber o ring.

Manufacturer part number HT4020-7-21AY for national stock number 5305011434076.

Datasheet

  • Product description

    Shoulder Screw NSN 5305-01-143-4076.

  • MPN or Model

    HT4020-7-21AY

  • 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
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.630 inches and 0.697 inches
  • Fastener Length
    Between 1.952 inches and 1.999 inches
  • Head Style
    Flat countersunk undercut
  • Head Diameter
    Between 0.881 inches and 0.888 inches
  • Head Height
    Between 0.113 inches and 0.120 inches
  • Shoulder Diameter
    0.4677 inches first shoulder and 0.4682 inches first shoulder
  • Shoulder Length
    1.182 inches first shoulder and 1.209 inches first shoulder
  • Internal Drive Style
    High-torque
  • Thread Diameter
    0.438 inches
  • Thready Qty Per Inch (tpi)
    20
  • Countersink Angle
    100.0 degrees
  • Shoulder Shape
    Round first shoulder
  • Material
    Steel comp xm-13
  • Material Specification
    Ams5629 assn standard single material response
  • Surface Treatment
    Passivate
  • Thread Series Designator
    Unjf
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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 5305011434076

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
HT4020-7-21AY Huck International, Inc.
HT4020-7-21AY Arconic Global Fasteners & Rings,
HT4020-7-21AY Hi-shear Corporation
3M902C7-21A Boeing Company, The
HT4020-7-21AY Sps Technologies, Llc
HT4020-7-21AY Lisi Aerospace Canada Corp
11879C7-21A Reid Products Inc.
3M902C7-21A Alcoa Global Fasteners, Inc.
HT4020-7-21AY Huck Intl Inc
HT4020-7-21AY Alcoa Global Fasteners, Inc.
Stock Check
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