5305-01-188-9243

Find complete technical information, availability, and procurement data for: 5305-01-188-9243
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-188-9243

Item Name Code

16282

Assigment Date

09/10/1984 (41 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes:undercut for thread relief). It is no. 0 (0.060 in.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below no. 10 (0.190 in.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and 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. See also bolt, externally relieved body and bolt, internal wrenching.

right-hand thread direction, 2a thread class, 0.206 inches minimum and 0.256 inches maximum thread length, 0.281 inches nominal head diameter, 0.256 inches nominal fastener 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: 2a
Thread Direction: right-hand
Thread Length: 0.206 inches minimum and 0.256 inches maximum
Fastener Length: 0.256 inches nominal
Head Diameter: 0.281 inches nominal
Head Height: 0.156 inches minimum and 0.166 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.125 inches
Width Across Flats: 0.109 inches minimum and 0.111 inches maximum
Thread Quantity Per Inch: 40
Hardness Rating: 28.0 rockwell c minimum and 35.0 rockwell c maximum overall
Material: steel comp 410 overall
Thread Series Designator: unc

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
1037-720	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-188-9243?

The FSCG of the NSN 5305-01-188-9243 is 5305

Does the NSN 5305-01-188-9243 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-188-9243 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 5305-01-188-9243 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-188-9243 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 5305-01-188-9243 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Mon, Sep 10, 1984