5310-00-272-6491

Find complete technical information, availability, and procurement data for: 5310-00-272-6491
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-272-6491

Item Name Code

01869

Assigment Date

01/01/1963 (63 years ago)

2.844 inches minimum and 2.874 inches maximum outside diameter, 2.400 inches minimum and 2.425 inches maximum hole diameter, 0.204 inches minimum and 0.234 inches maximum external prebent key width, 0.125 inches minimum and 0.156 inches maximum internal prebent key length, 0.250 inches minimum and 0.290 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: 2.400 inches minimum and 2.425 inches maximum
Outside Diameter: 2.844 inches minimum and 2.874 inches maximum
Internal Prebent Key Length: 0.125 inches minimum and 0.156 inches maximum
External Prebent Key Width: 0.204 inches minimum and 0.234 inches maximum
Internal Prebent Key Width: 0.250 inches minimum and 0.290 inches maximum
Overall Distance Including Keys: 3.281 inches minimum and 3.344 inches maximum
External Key Quantity: 17
Material Thickness: 0.063 inches nominal
Hardness Rating: 55.0 rockwell b maximum
Material: steel comp 1010 overall
Material Document And Classification: -sae assn std single material response overall
Style Designator: key

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-561-9880	No Name Available	01/01/1963
5310-00-622-6482	No Name Available	01/01/1963

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
275W	Key Washer
27SW	Key Washer
28702	Key Washer
500366-13	Key Washer
5T5170	Key Washer
8A2307	Key Washer

FAQs

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

What is the FSCG of the NSN 5310-00-272-6491?

The FSCG of the NSN 5310-00-272-6491 is 5310

Does the NSN 5310-00-272-6491 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-00-272-6491 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 5310-00-272-6491 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-272-6491 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 5310-00-272-6491 was assigned to the Federal Catalog?

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