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A0L4168-158

View detailed technical data, stock status, and sourcing information for: A0L4168-158

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A0L4168-158
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-00-310-6038
Item Name Code
06657
Assigment Date
10/26/1973 (52 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

3a thread class, right-hand thread direction, flat countersunk head style, 0.531 inches minimum and 0.562 inches maximum fastener length, 0.432 inches minimum and 0.513 inches maximum thread length

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class
3a
Thread Direction
right-hand
Thread Length
0.432 inches minimum and 0.513 inches maximum
Fastener Length
0.531 inches minimum and 0.562 inches maximum
Head Style
flat countersunk
Head Diameter
0.191 inches minimum and 0.225 inches maximum
Internal Drive Style
cross recess type 1
Nominal Thread Diameter
0.112 inches
Thread Quantity Per Inch
40
Minimum Tensile Strength
160000 pounds per square inch
Countersink Angle
99.0 degrees minimum and 101.0 degrees maximum
Screw Material
iron alloy 660
Screw Material Document And Classification
ams 5737 assn std single material response
Thread Series Designator
unjc

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
10125151 Machine Screw
106751-04-158C Machine Screw
965813-158C Machine Screw
A0L4168-158 Machine Screw
AIC813-04R9 Machine Screw
E125-158 Machine Screw
PBF1068-158C Machine Screw

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5305-00-310-6038?
The FSCG of the NSN 5305-00-310-6038 is 5305
Does the NSN 5305-00-310-6038 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-310-6038 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5305-00-310-6038 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-310-6038 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5305-00-310-6038 was assigned to the Federal Catalog?
It was assigned 52 years ago, on Fri, Oct 26, 1973

Professional Distribution

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