NSN 5305-01-399-3101
Panel Assembly Fastener
Between 0.638 inches and 0.668 inches fastener length, flat countersunk head style, between 0.3504 inches and 0.3998 inches head diameter, shoulder diameter: 0.2641 inches first shoulder and 0.2651 inches first shoulder.
Manufacturer part number NAS1581F4T4X for national stock number 5305013993101.
Datasheet
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Product description
Shoulder Screw NSN 5305-01-399-3101.
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MPN or Model
NAS1581F4T4X
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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)
093470 - Bolts/nuts I/s -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
0.403 inches -
Fastener Length
Between 0.638 inches and 0.668 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.3504 inches and 0.3998 inches -
Shoulder Diameter
0.2641 inches first shoulder and 0.2651 inches first shoulder -
Shoulder Length
0.240 inches first shoulder and 0.260 inches first shoulder -
Internal Drive Style
Offset cruciform (torque set) -
Thread Diameter
0.250 inches -
Thready Qty Per Inch (tpi)
28 -
Countersink Angle
Between 99.0 degrees and 101.0 degrees -
Shoulder Shape
Round first shoulder -
Material
Steel comp 4140 or steel comp e4340 or steel comp 8740 -
Material Specification
Mil-s-5626 military specification 1st material response or mil-s-5000 military specification 2nd material response or mil-s-6049 military specification 3rd material response -
Surface Treatment
Cadmium and chromate -
Surface Treatment Specification
Qq-p-416 type 2 cl2 federal specification single treatment response -
Thread Series Designator
Unjf -
Specification Data
80205-nas1581 professional/industrial association standard
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An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. No. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use screw, externally relieved body. For items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. Excludes bolt, internal wrenching and screw, cap, socket head.
Pricing and Availability
Get a quote for 5305-01-399-3101 shoulder screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
NAS1581F4T4X | National Aerospace Standards |
NAS1581F4T4X | Ufc Aerospace Corp. |
NAS1581A4T4X | Ufc Aerospace Corp. |