4250818

View detailed technical data, stock status, and sourcing information for: 4250818
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-661-3853

Item Name Code

14218

Assigment Date

03/01/2017 (9 years ago)

A flexible, tubular item of light wall construction. It must have single or multiple layers of nonmetallic material, but may contain metal wire reinforcement, foil type liner, and/or woven or braided cover. It is designed to convey under low pressure gaseous material, such as air and fumes, and light weight solid materials, such as dust, powders, and fibers. For items with couplings, see hose assembly, air duct. For items of sleeve section design rated for high pressure use, see sleeve, seal, coupling. Excludes:hose, nonmetallic.

washer, locking, split .25x.49x.06 zchdn part name assigned by controlling agency, 0.062 inches minimum and 0.072 inches maximum material thickness, 0.252 inches minimum and 0.260 inches maximum hole diameter, 0.487 inches nominal outside diameter, 4210-01-622-0440; truck, fire fighting 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: 0.252 inches minimum and 0.260 inches maximum
Outside Diameter: 0.487 inches nominal
Material Thickness: 0.062 inches minimum and 0.072 inches maximum
End Item Identification: 4210-01-622-0440; truck, fire fighting
Part Name Assigned By Controlling Agency: washer, locking, split .25x.49x.06 zchdn
Surface Treatment Document And Classification: fe/zn 3at per astm f1941 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
4250818	Lock Washer

FAQs

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

What is the FSCG of the NSN 5310-01-661-3853?

The FSCG of the NSN 5310-01-661-3853 is 5310

Does NSN 5310-01-661-3853 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 5310-01-661-3853 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-661-3853 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 5310-01-661-3853 was assigned to the Federal Catalog?

It was assigned 9 years ago, on Wed, Mar 1, 2017