ASME B.18.21.1

View detailed technical data, stock status, and sourcing information for: ASME B.18.21.1
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-493-5355

Item Name Code

14218

Assigment Date

01/09/2002 (24 years ago)

A tubular shaped unthreaded item with or without a flange at one end designed to be inserted into a hole to reduce the inside diameter of the hole and to protect the surrounding body structure from damage resulting from stress, strain, and/or vibration. The overall length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body. Includes items which are divided into two or more segments which includes 180 degrees (3.141 radians) or less of the bearing periphery. For items made of rubber, see bushing, nonmetallic. See also bearing, sleeve; bushing, tapered; spacer, sleeve; insulator, bushing; and bushing, electrical conductor. Excludes:bushing, drill, jig.

1.073 inches nominal outside diameter, 0.628 inches minimum and 0.641 inches maximum hole diameter, steel comp 1059 overall material, 0.156 inches nominal material thickness, 2350-01-390-4683, recovery vehicle fu; logistics support vessel end item identification

Product Characteristics

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

Hole Diameter: 0.628 inches minimum and 0.641 inches maximum
Outside Diameter: 1.073 inches nominal
Material Thickness: 0.156 inches nominal
End Item Identification: 2350-01-390-4683, recovery vehicle fu; logistics support vessel
Material: steel comp 1059 overall
Material Document And Classification: saej412,g10590 assn std single material response overall
Surface Treatment: zinc and chromate overall
Surface Treatment Document And Classification: astmb633,tyii,sc3 assn std single treatment response 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
AEW07625000GD8AA1	Lock Washer
ASME B.18.21.1	Lock Washer
ASME B10.21.1	Lock Washer
MS35338-50M	Lock Washer
W211NAA0062NN038NNCG1	Lock Washer

FAQs

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

What is the FSCG of the NSN 5310-01-493-5355?

The FSCG of the NSN 5310-01-493-5355 is 5310

Does the NSN 5310-01-493-5355 have a Schedule B code assigned?

Yes, the Schedule B code is 7318210000

Does NSN 5310-01-493-5355 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 5310-01-493-5355 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-493-5355 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 5310-01-493-5355 was assigned to the Federal Catalog?

It was assigned 24 years ago, on Wed, Jan 9, 2002