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NSN 5305-00-071-2057

Tap Bolt

About this product

Weapon system essential.

Manufacturer part number 1741AS278-131 for national stock number 5305000712057.

Datasheet

  • Product description

    Hexagon Head Cap Screw NSN 5305-00-071-2057.

  • MPN or Model

    1741AS278-131

  • 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
    2a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 1.125 inches and 1.313 inches
  • Fastener Length
    Between 1.938 inches and 2.000 inches
  • Head Style
    Hexagon
  • Head Height
    Between 0.272 inches and 0.291 inches
  • Width Between Flats
    Between 0.612 inches and 0.625 inches
  • Thread Diameter
    0.438 inches
  • Thready Qty Per Inch (tpi)
    14
  • Min. Tensile Strength (psi)
    150000 pounds per square inch
  • Criticality Code Justification
    Feat
  • Surface Finish
    63.0 microinches threads
  • Material
    Steel
  • Material Specification
    Sae j429 grade 8 assn standard single material response or astm a354 grade bd assn standard single material response
  • Surface Treatment
    Zinc and chromate
  • Surface Treatment Specification
    Astm b633 type 2 sc 3 assn standard single treatment response
  • Thread Series Designator
    Unc
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Hexagon Head Cap Screw

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. the threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. the thread length being the controlled dimension, the grip length is not specified. a locking feature may be incorporated in the design of the head or threads. the head is not designed to be held or driven with an inserted driver or by the thumb and fingers. excludes bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

Mechanic Bill explains Tap Bolt

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NSN 5305000712057

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
1741AS278-131 Naval Air Systems Command
B1821BH044C200N American National Standards
MS90728-91 Military Standards
5305PL0657096 Inspektorat Wsparcia Sil Zbrojnych
Stock Check
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