4820-01-688-3102

Find complete technical information, availability, and procurement data for: 4820-01-688-3102
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-688-3102

Item Name Code

05481

Assigment Date

05/12/2020 (6 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.

disk flow control device, valve,trap drainer part name assigned by controlling agency, automatic valve operation method, steel stainless - use stb000 seat material, steel body material

Product Characteristics

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

Flow Control Device: disk
Valve Operation Method: automatic
Part Name Assigned By Controlling Agency: valve,trap drainer
Material: steel body
Material: steel stainless - use stb000 seat
Material Document And Classification: astm a105 assn std single material response body
Media For Which Designed: water, fresh single response

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
71-315 3/4NPT 1/16	Float Valve
D508011	Float Valve

FAQs

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

What is the FSCG of the NSN 4820-01-688-3102?

The FSCG of the NSN 4820-01-688-3102 is 4820

Does NSN 4820-01-688-3102 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 4820-01-688-3102 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-688-3102 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 4820-01-688-3102 was assigned to the Federal Catalog?

It was assigned 6 years ago, on Tue, May 12, 2020