NSN 5305-01-303-5639
High Torque Screw
Between 0.704 inches and 0.734 inches fastener length, oval countersunk head style, between 0.390 inches and 0.395 inches head diameter, grip diameter: between 0.2490 inches and 0.2495 inches .
Manufacturer part number 3M939-4-4 for national stock number 5305013035639.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-01-303-5639.
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MPN or Model
3M939-4-4
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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)
139820 - Nickel Bolts/nails/nuts/rivets Etc -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
Between 0.444 inches and 0.494 inches -
Fastener Length
Between 0.704 inches and 0.734 inches -
Head Style
Oval countersunk -
Head Diameter
Between 0.390 inches and 0.395 inches -
Grip Diameter
Between 0.2490 inches and 0.2495 inches -
Internal Drive Style
Offset cruciform (torque set) -
Thread Diameter
0.250 inches -
Grip Length
Between 0.240 inches and 0.260 inches -
Thready Qty Per Inch (tpi)
28 -
Min. Tensile Strength (psi)
125000 pounds per square inch -
Countersink Angle
Between 99.0 degrees and 101.0 degrees -
Part Name Assigned By Controlling Agency
Navy special project -
Material
Nickel alloy 718 -
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 5305-01-303-5639 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
3M939-4-4 | Boeing Company, The |
AIC939-4-4P | Sps Technologies, Llc |
SC1823-4-4P | Arconic Global Fasteners & Rings, |
AIC939-4-4 | Sps Technologies, Llc |
SC1823-4-4 | Arconic Global Fasteners & Rings, |
HR248-4-4PX | Hi-shear Corporation |
VT1731-4-4 | Alcoa Global Fasteners, Inc. |
HR248-4-4PX | Lisi Aerospace Canada Corp |
AIC939-4-4P | Sps Technologies, Llc |
SC1823-4-4P | Arconic Global Fasteners & Rings, |
3M939-4-4 | Boeing Company, The |
AIC939-4-4 | Sps Technologies, Llc |
SC1823-4-4 | Arconic Global Fasteners & Rings, |
HR248-4-4PX | Hi-shear Corporation |
VT1731-4-4 | Alcoa Global Fasteners, Inc. |
HR248-4-4PX | Lisi Aerospace Canada Corp |