NSN 5305-00-144-3949

Bolt Stove

About this product

Between 0.281 inches and 0.312 inches fastener length, flat countersunk head style, between 0.249 inches and 0.279 inches head diameter, internal drive style: cross recess type 1.

Manufacturer part number 23AN507-632R5 for national stock number 5305001443949.


  • Product description

    Machine Screw NSN 5305-00-144-3949.

  • 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)
  • Thread Class
  • Thread Direction
  • Thread Length
    Between 0.250 inches and 0.312 inches
  • Fastener Length
    Between 0.281 inches and 0.312 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.249 inches and 0.279 inches
  • Internal Drive Style
    Cross recess type 1
  • Thread Diameter
    0.138 inches
  • Thready Qty Per Inch (tpi)
  • Min. Tensile Strength (psi)
    55 pounds per square inch
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Screw Material
    Steel comp 1010
  • Screw Material Specification
    Qq-s-630 federal specification single material response or qq-s-631 federal specification single material response or qq-s-634 federal specification single material response
  • Screw Surface Treatment
  • Screw Surface Treatment Specification
    Qq-p-416, type 1, cl 3 federal specification single treatment response
  • Thread Series Designator
  • Specification Data
    88044-an507/cancelled/ government standard
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Machine Screw

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

Mechanic Bill explains Bolt Stove

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NSN 5305001443949

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
23AN507-632R5 L-3 Communications Cincinnati
211-0538-00 Spacelabs-hillsboro Operations
211-538 Spacelabs-hillsboro Operations
AN507-632R5 Aeronautical Standards Group
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