12687B18

View detailed technical data, stock status, and sourcing information for: 12687B18
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-381-3066

Item Name Code

06158

Assigment Date

10/14/1993 (32 years ago)

A metallic or nonmetallic item which is rigid, flat and generally smooth. Its thickness is small in comparison to its length and width. It is designed for mounting one or more items and may have drilled or threaded holes or other facilities for mounting to a supporting object or surface. See support,as modified. Do not use if a more specific name applies.

4.060 inches maximum hole diameter, 0.310 inches nominal external prebent key width, 4.190 inches nominal overall distance including keys, 0.029 inches minimum and 0.031 inches maximum material thickness, 4.560 inches nominal outside diameter

Product Characteristics

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

Hole Diameter: 4.060 inches maximum
Outside Diameter: 4.560 inches nominal
External Prebent Key Width: 0.310 inches nominal
Overall Distance Including Keys: 4.190 inches nominal
Material Thickness: 0.029 inches minimum and 0.031 inches maximum
Material: titanium overall

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
12050B18	Keyway Washer
12132F18-257B	Keyway Washer
12687B18	Keyway Washer
403D257CX10	Keyway Washer

FAQs

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

What is the FSCG of the NSN 5310-01-381-3066?

The FSCG of the NSN 5310-01-381-3066 is 5310

Does the NSN 5310-01-381-3066 have a Schedule B code assigned?

Yes, the Schedule B code is 8108908000

Does NSN 5310-01-381-3066 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 5310-01-381-3066 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-381-3066 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 5310-01-381-3066 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Thu, Oct 14, 1993