NSN 5305-01-049-7799
High Torque Screw
Between 1.660 inches and 1.690 inches fastener length, flat countersunk head style, between 0.455 inches and 0.510 inches head diameter, grip diameter: between 0.2490 inches and 0.2495 inches .
Manufacturer part number BACB30LR4U20 for national stock number 5305010497799.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-01-049-7799.
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MPN or Model
BACB30LR4U20
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Schedule B
7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment) -
NMF (National Motor Freight)
013680 - Alum Screws -
Unit Weight (Est.)
0.1 lb -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
Between 0.400 inches and 0.450 inches -
Fastener Length
Between 1.660 inches and 1.690 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.455 inches and 0.510 inches -
Grip Diameter
Between 0.2490 inches and 0.2495 inches -
Internal Drive Style
Cross recess type 1 -
Thread Diameter
0.250 inches -
Grip Length
Between 1.240 inches and 1.260 inches -
Thready Qty Per Inch (tpi)
28 -
Countersink Angle
100.0 degrees -
Surface Finish
32.0 microinches threads -
Material
Iron alloy 660 -
Surface Treatment
Passivate -
Thread Series Designator
Unjf
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A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.
Pricing and Availability
Get a quote for 5305-01-049-7799 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
BACB30LR4U20 | The Boeing Company |
BACB30LR4U20 | Sps Technologies, Llc |
BACB30LR4U20 | Huck International, Inc. |
BACB30LR4U20 | Huck Intl Inc |