085 310 18

View detailed technical data, stock status, and sourcing information for: 085 310 18
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-264-9410

Item Name Code

14218

Assigment Date

10/08/1987 (38 years ago)

A washer, round in shape, having a centrally located hole. One bearing surface is flat, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. Either or both of the bearing surfaces must be broken by a counterbore, countersink, or similar shaped recess. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing, sleeve; or spacer, sleeve. Excludes:insulator, washer and thrust type washers.

44.0 rockwell c minimum and 51.0 rockwell c maximum hardness rating, medium mine protected vehicle - mmpv end item identification, 18.1 millimeters maximum outside diameter, 2.05 millimeters minimum and 2.35 millimeters maximum material thickness, 10.2 millimeters minimum and 10.7 millimeters maximum hole 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: 10.2 millimeters minimum and 10.7 millimeters maximum
Outside Diameter: 18.1 millimeters maximum
Material Thickness: 2.05 millimeters minimum and 2.35 millimeters maximum
End Item Identification: medium mine protected vehicle - mmpv
Hardness Rating: 44.0 rockwell c minimum and 51.0 rockwell c maximum
Color: black overall
Material: steel overall
Surface Treatment: zinc and chromate overall
Style Designator: split helical-right hand

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
085 310 18	Lock Washer
487835	Lock Washer
B-10-DIN-127	Lock Washer
DIN 127B-M10-A4	Lock Washer
DIN127B-M10-A4C	Lock Washer

FAQs

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

What is the FSCG of the NSN 5310-01-264-9410?

The FSCG of the NSN 5310-01-264-9410 is 5310

Does the NSN 5310-01-264-9410 have a Schedule B code assigned?

Yes, the Schedule B code is 7318210000

Does NSN 5310-01-264-9410 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 5310-01-264-9410 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-264-9410 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 5310-01-264-9410 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Thu, Oct 8, 1987