4820-01-641-5850

Find complete technical information, availability, and procurement data for: 4820-01-641-5850
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-641-5850

Item Name Code

77777

Assigment Date

01/27/2015 (11 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.

zzzy criticality code justification, material controlled iaw navsea 0948-lp-045-7010 material control standard for level i items reference number differentiating characteristics

Product Characteristics

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

Criticality Code Justification: zzzy
Reference Number Differentiating Characteristics: material controlled iaw navsea 0948-lp-045-7010 material control standard for level i items

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
14922788	H/b B Combination Valve
14922788L1	H/b B Combination Valve
801-6404585 ASSY 97	H/b B Combination Valve
801-6404585 ASSY 97L1	H/b B Combination Valve
CD-023-06	H/b B Combination Valve
CD-023-06L1	H/b B Combination Valve
DF330612 ASSY 97	H/b B Combination Valve
DF330612 ASSY 97L1	H/b B Combination Valve

FAQs

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

What is the FSCG of the NSN 4820-01-641-5850?

The FSCG of the NSN 4820-01-641-5850 is 4820

Does NSN 4820-01-641-5850 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 4820-01-641-5850 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-641-5850 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 4820-01-641-5850 was assigned to the Federal Catalog?

It was assigned 11 years ago, on Tue, Jan 27, 2015