3188561-2 PIECE 8

View detailed technical data, stock status, and sourcing information for: 3188561-2 PIECE 8
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-301-4070

Item Name Code

06666

Assigment Date

05/27/1989 (37 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also screw, cap, socket head. Excludes:setscrew; screw, shoulder; bolt, shoulder; screw, externally relieved body; bolt, externally relieved body; and screw, machine.

0.475 inches minimum and 0.525 inches maximum thread length, right-hand thread direction, 3a thread class, 3.110 inches minimum and 3.140 inches maximum fastener length, bevel-conical head style

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: 0.475 inches minimum and 0.525 inches maximum
Fastener Length: 3.110 inches minimum and 3.140 inches maximum
Head Style: bevel-conical
Head Diameter: 0.381 inches minimum and 0.438 inches maximum
Head Height: 0.216 inches minimum and 0.236 inches maximum
Hole Diameter: 0.046 inches minimum and 0.051 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Width Across Flats: 0.219 inches minimum and 0.221 inches maximum
Hole Quantity: 6
Hole Type: drilled
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 160000 pounds per square inch
Hole Configuration Style: round internal hexagon
Material: steel comp 4340 or steel comp 8740 or steel comp 6150 or steel comp 3135 or steel comp 3140 overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416 ty 2 cl 2 fed spec single treatment response overall
Thread Series Designator: unjf
Specification/Standard Data: 80205-nas144 professional/industrial association standard

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
3188561-2 PIECE 8	Internal Wrenching Bolt
NAS144DH50	Internal Wrenching Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-301-4070?

The FSCG of the NSN 5306-01-301-4070 is 5306

Does the NSN 5306-01-301-4070 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-301-4070 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 5306-01-301-4070 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-301-4070 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 5306-01-301-4070 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Sat, May 27, 1989