XM68927

View detailed technical data, stock status, and sourcing information for: XM68927
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-083-5535

Item Name Code

18257

Assigment Date

09/26/1979 (46 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:undercuts for thread relief). It is no. 10 (0.190 in.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, internal wrenching and thumbscrew. See also screw, externally relieved body.

1.590 inches minimum and 1.663 inches maximum fastener length, 2a thread class, right-hand thread direction, 1.340 inches nominal thread length, hexagon 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: 2a
Thread Direction: right-hand
Thread Length: 1.340 inches nominal
Fastener Length: 1.590 inches minimum and 1.663 inches maximum
Head Style: hexagon
Head Height: 0.150 inches minimum and 0.163 inches maximum
Width Between Flats: 0.428 inches minimum and 0.438 inches maximum
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 20
Hardness Rating: 32.0 rockwell c minimum and 38.0 rockwell c maximum overall
Material: steel comp 4130 or steel comp 8630 overall
Material Document And Classification: astm a322 assn std single material response or astm a331 assn std single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416,type 2,class 3 fed spec single treatment response 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
12284087	Hexagon Head Cap Screw
XM68927	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-083-5535?

The FSCG of the NSN 5305-01-083-5535 is 5305

Does the NSN 5305-01-083-5535 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-083-5535 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 5305-01-083-5535 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-083-5535 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 5305-01-083-5535 was assigned to the Federal Catalog?

It was assigned 46 years ago, on Wed, Sep 26, 1979