5310-01-055-2838

Find complete technical information, availability, and procurement data for: 5310-01-055-2838
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-055-2838

Item Name Code

01869

Assigment Date

02/04/1978 (48 years ago)

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes:disk, valve, graphite impregnated and lubricated items.

0.390 inches minimum and 0.395 inches maximum hole diameter, 0.180 inches minimum and 0.200 inches maximum external prebent key width, 0.546 inches minimum and 0.556 inches maximum outside diameter, 1.150 inches minimum and 1.170 inches maximum overall distance including keys, 0.140 inches minimum and 0.150 inches maximum internal prebent key width

Product Characteristics

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

Hole Diameter: 0.390 inches minimum and 0.395 inches maximum
Outside Diameter: 0.546 inches minimum and 0.556 inches maximum
External Prebent Key Width: 0.180 inches minimum and 0.200 inches maximum
Internal Prebent Key Width: 0.140 inches minimum and 0.150 inches maximum
Overall Distance Including Keys: 1.150 inches minimum and 1.170 inches maximum
Material Thickness: 0.038 inches minimum and 0.048 inches maximum
Material: steel overall
Material Document And Classification: ams5510 assn std single material response 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
415892	Key Washer

FAQs

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

What is the FSCG of the NSN 5310-01-055-2838?

The FSCG of the NSN 5310-01-055-2838 is 5310

Does the NSN 5310-01-055-2838 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-01-055-2838 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 5310-01-055-2838 contain precious materials?

Precious metal content is unknown

Does NSN 5310-01-055-2838 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 5310-01-055-2838 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Sat, Feb 4, 1978