NSN 5305-01-203-1664
High Torque Screw
Between 1.540 inches and 1.560 inches fastener length, flat countersunk head style, between 0.455 inches and 0.510 inches head diameter, grip diameter: between 0.2485 inches and 0.2495 inches .
Manufacturer part number BACB30LU4-18 for national stock number 5305012031664.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-01-203-1664.
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MPN or Model
BACB30LU4-18
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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)
096630 - Screws NOI Brass/bronze/copper -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
0.425 inches -
Fastener Length
Between 1.540 inches and 1.560 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.455 inches and 0.510 inches -
Grip Diameter
Between 0.2485 inches and 0.2495 inches -
Internal Drive Style
Cross recess type 1 -
Thread Diameter
0.250 inches -
Grip Length
Between 1.115 inches and 1.135 inches -
Thready Qty Per Inch (tpi)
28 -
Countersink Angle
Between 99.0 degrees and 100.0 degrees -
Material
Steel comp 4340 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 -
Surface Treatment Specification
Qq-p-416 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.
Pricing and Availability
Get a quote for 5305-01-203-1664 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
BACB30LU4-18 | Federal Manufacturing Corporation |
BACB30LU4-18 | Baumbach E A Mfg Co |
BACB30LU4-18 | Sps Technologies, Llc |
BACB30LU4-18 | Arconic Global Fasteners & Rings, |
BACB30LU4-18 | Sonic Industries Inc. |
BACB30LU4-18 | Sps Technologies, Llc |
BACB30LU4-18 | Sps Technologies, Llc |
BACB30LU4-18 | The Boeing Company |
BACB30LU4-18 | Alcoa Global Fasteners, Inc. |
BACB30LU4-18 | Huck International, Inc. |
BACB30LU4-18 | Sps Technologies, Llc |
BACB30LU4-18 | Huck Intl Inc |