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NSN 5305-01-184-3777

Panel Assembly Fastener

About this product

Between 1.385 inches and 1.405 inches fastener length, flat countersunk head style, between 0.927 inches and 1.019 inches head diameter, shoulder diameter: 0.5297 inches first shoulder and 0.5307 inches first shoulder.

Manufacturer part number BACB30LU8-21Y for national stock number 5305011843777.

Datasheet

  • Product description

    Shoulder Screw NSN 5305-01-184-3777.

  • MPN or Model

    BACB30LU8-21Y

  • 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
    0.735 inches
  • Fastener Length
    Between 1.385 inches and 1.405 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.927 inches and 1.019 inches
  • Shoulder Diameter
    0.5297 inches first shoulder and 0.5307 inches first shoulder
  • Shoulder Length
    0.645 inches first shoulder and 0.665 inches first shoulder
  • Internal Drive Style
    Cross recess type 1
  • Thread Diameter
    0.500 inches
  • Thready Qty Per Inch (tpi)
    20
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Shoulder Shape
    Round first shoulder
  • Material
    Steel comp e4340 or steel comp 8740
  • Material Specification
    Mil-s-5000 military specification 1st material response or mil-s-6049 military specification 2nd material response or ams 6322 assn standard 2nd material response
  • Surface Treatment
    Cadmium and chromate
  • Surface Treatment Specification
    Qq-p-416 type 2 class 2 federal specification single treatment response
  • 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 5305011843777

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
BACB30LU8-21Y Huck International, Inc.
BACB30LU8-21Y The Boeing Company
BACB30LU8-21Y Sonic Industries Inc.
BACB30LU8-21Y Sps Technologies, Llc
BACB30LU8-21Y Arconic Global Fasteners & Rings,
BACB30LU8-21Y Federal Manufacturing Corporation
BACB30LU8-21Y Sps Technologies, Llc
BACB30LU8-21Y Sps Technologies, Llc
BACB30LU8-21Y Alcoa Global Fasteners, Inc.
BACB30LU8-21Y Valley-todeco, Inc.
BACB30LU8-21Y Huck Intl Inc
BACB30LU8-21Y Sps Technologies, Llc
Stock Check
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