NSN 5305-01-337-4856
High Torque Screw
Between 0.910 inches and 0.940 inches fastener length, flat countersunk head style, between 0.445 inches and 0.510 inches head diameter, grip diameter: between 0.2490 inches and 0.2495 inches .
Manufacturer part number BACB30WP4-8 for national stock number 5305013374856.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-01-337-4856.
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MPN or Model
BACB30WP4-8
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Schedule B
7508.90.0000 (Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire)) -
NMF (National Motor Freight)
096640 - Screws, Iron Or Steel -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
0.425 inches -
Fastener Length
Between 0.910 inches and 0.940 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.445 inches and 0.510 inches -
Grip Diameter
Between 0.2490 inches and 0.2495 inches -
Internal Drive Style
High-torque -
Thread Diameter
0.250 inches -
Grip Length
Between 0.490 inches and 0.510 inches -
Thready Qty Per Inch (tpi)
28 -
Countersink Angle
Between 99.0 degrees and 101.0 degrees -
Surface Finish
32.0 microinches bearing surface of head32.0 microinches grip32.0 microinches threads -
Material
Nickel alloy 718 -
Material Specification
Ams 5662 assn standard single material response -
Surface Treatment
Passivate -
Surface Treatment Specification
Qq-p-35 federal specification single treatment response -
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.
![Mechanic Bill explains High Torque Screw](/public/images/billy-thinking.png)
Pricing and Availability
Get a quote for 5305-01-337-4856 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
BACB30WP4-8 | Huck International, Inc. |
BACB30WP4-8 | The Boeing Company |
BACB30WP4-8 | Hi-shear Corporation |
BACB30WP4-8 | Sps Technologies, Llc |
BACB30WP4-8 | Alcoa Global Fasteners, Inc. |
BACB30WP4-8 | Lisi Aerospace Canada Corp |
BACB30WP4-8 | Huck Intl Inc |
Stock Check
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