NSN 5305-01-435-0525
Panel Assembly Fastener
Between 3.251 inches and 3.281 inches fastener length, flat countersunk head style, between 0.951 inches and 1.014 inches head diameter, shoulder diameter: 0.5141 inches first shoulder and 0.5151 inches first shoulder.
Manufacturer part number NAS1248-45 for national stock number 5305014350525.
Datasheet
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Product description
Shoulder Screw NSN 5305-01-435-0525.
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MPN or Model
NAS1248-45
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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)
096640 - Screws, Iron Or Steel -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
0.453 inches -
Fastener Length
Between 3.251 inches and 3.281 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.951 inches and 1.014 inches -
Shoulder Diameter
0.5141 inches first shoulder and 0.5151 inches first shoulder -
Shoulder Length
2.803 inches first shoulder and 2.823 inches first shoulder -
Internal Drive Style
High-torque -
Thread Diameter
0.500 inches -
Thready Qty Per Inch (tpi)
20 -
Min. Tensile Strength (psi)
160000 pounds per square inch -
Countersink Angle
Between 99.0 degrees and 101.0 degrees -
Shoulder Shape
Round first shoulder -
Material
Steel comp 4140 or steel comp 4340 or steel comp 8735 or steel comp 8740 or steel comp 6150 -
Material Specification
Mil-s-5626 military specification 1st material response or mil-s-5000 military specification 2nd material response or mil-s-6098 military specification 3rd material response or mil-s-6049 military specification 4th material response or mil-s-8503 military specification 5th material response -
Surface Treatment
Cadmium and chromate -
Surface Treatment Specification
Qq-p-416, type 2, class 2 federal specification all treatment responses -
Thread Series Designator
Unjf -
Specification Data
80205-nas1248 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.
![Mechanic Bill explains Panel Assembly Fastener](/public/images/billy-thinking.png)
Pricing and Availability
Get a quote for 5305-01-435-0525 shoulder screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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NAS1248-45 | National Aerospace Standards |
Stock Check
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