B18231B06030N

View detailed technical data, stock status, and sourcing information for: B18231B06030N
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-438-5895

Item Name Code

18257

Assigment Date

11/13/1996 (29 years ago)

A deformable material which prevents the passage of matter through the joint formed when two faces are joined. It may be metallic or nonmetallic, lubricated or impregnated, solid or hollow cross section. It may be made to any predetermined dimension and shape. Excludes:flat disks, items made of felt material and items having joints. For round metal and plastic items with an aperture and a solid rectangular cross section, see washer, flat; shim; bearing, washer, thrust; and spacer ring. Excludes:disk, valve; seal, nonmetallic angle; seal, nonmetallic channel; seal, nonmetallic special shaped section; shielding gasket, electronic; and ring, sealing jar.

18.0 millimeters nominal thread length, hexagon head style, 29.6 millimeters minimum and 30.4 millimeters maximum fastener length, 3.85 millimeters minimum and 4.15 millimeters maximum head height, right-hand thread direction

Product Characteristics

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

Thread Direction: right-hand
Thread Length: 18.0 millimeters nominal
Fastener Length: 29.6 millimeters minimum and 30.4 millimeters maximum
Head Style: hexagon
Head Height: 3.85 millimeters minimum and 4.15 millimeters maximum
Width Between Flats: 9.78 millimeters minimum and 10.00 millimeters maximum
End Item Identification: mrap rg-31
Nominal Thread Diameter: 6.0 millimeters
Thread Pitch In Millimeters: 1.0
External Thread Tolerance Class: 6g
Material: steel property class 10.9 overall
Surface Treatment: zinc overall
Surface Treatment Document And Classification: qq-z-325,ty2,cl3 fed spec single treatment response overall
Thread Series Designator: m

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
12485434-078	Hexagon Head Cap Screw
B18231B06030N	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-438-5895?

The FSCG of the NSN 5305-01-438-5895 is 5305

Does the NSN 5305-01-438-5895 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-438-5895 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 5305-01-438-5895 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-438-5895 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 5305-01-438-5895 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Wed, Nov 13, 1996