521091

View detailed technical data, stock status, and sourcing information for: 521091
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-311-2699

Item Name Code

01869

Assigment Date

01/01/1963 (63 years ago)

0.090 inches minimum and 0.110 inches maximum external prebent key length, 0.300 inches minimum and 0.320 inches maximum outside diameter, 0.110 inches minimum and 0.130 inches maximum external prebent key width, 0.160 inches nominal external tapered key width, 0.170 inches minimum and 0.180 inches 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: 0.170 inches minimum and 0.180 inches maximum
Outside Diameter: 0.300 inches minimum and 0.320 inches maximum
External Prebent Key Length: 0.090 inches minimum and 0.110 inches maximum
External Tapered Key Width: 0.160 inches nominal
External Prebent Key Width: 0.110 inches minimum and 0.130 inches maximum
Distance From Centerline To Inside Of Prebent Key: 0.165 inches minimum and 0.175 inches maximum
Overall Distance Including Keys: 0.496 inches nominal
Split Key Length: 0.160 inches minimum and 0.180 inches maximum
External Key Quantity: 3
Material Thickness: 0.033 inches minimum and 0.039 inches maximum
Angle Between External Keys: 60.0 degrees nominal
External Prebent Key Angle: 15.0 degrees nominal
Material: steel comp 1010 overall
Material Document And Classification: ams5040 assn std single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: ams 2400 assn std single treatment response overall
Style Designator: key

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
521091	Key Washer

FAQs

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

What is the FSCG of the NSN 5310-00-311-2699?

The FSCG of the NSN 5310-00-311-2699 is 5310

Does the NSN 5310-00-311-2699 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-00-311-2699 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 5310-00-311-2699 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-311-2699 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 5310-00-311-2699 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963