4820-00-838-9654

Find complete technical information, availability, and procurement data for: 4820-00-838-9654
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-838-9654

Item Name Code

77777

Assigment Date

12/14/1966 (59 years ago)

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

consists of 1 seat assembly,part no.27678,1 poppet assy,part no.27684,1 spring,part no.27689,1 spring retainer,part no.27679,1 key,part no.27685,1 washer,part no.27686,1 nut,part no.27687,3 packing o ring,part no.ms28775-230,4 retainer backup,part no.ms28774-230,1 packing o ring,part no.ms28775-227,1 retainer backup,part no.ms28774-227,2 plugs,part no.27996,2 cap assy,part no.28105,2 spring,comp,part no.27998,safety wire as reqd,part no.ms20995nc general characteristics item description

Product Characteristics

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

General Characteristics Item Description: consists of 1 seat assembly,part no.27678,1 poppet assy,part no.27684,1 spring,part no.27689,1 spring retainer,part no.27679,1 key,part no.27685,1 washer,part no.27686,1 nut,part no.27687,3 packing o ring,part no.ms28775-230,4 retainer backup,part no.ms28774-230,1 packing o ring,part no.ms28775-227,1 retainer backup,part no.ms28774-227,2 plugs,part no.27996,2 cap assy,part no.28105,2 spring,comp,part no.27998,safety wire as reqd,part no.ms20995nc

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
27748	Relief Cartridge Valve

FAQs

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

What is the FSCG of the NSN 4820-00-838-9654?

The FSCG of the NSN 4820-00-838-9654 is 4820

Does the NSN 4820-00-838-9654 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809050

Does NSN 4820-00-838-9654 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 4820-00-838-9654 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-838-9654 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 4820-00-838-9654 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Wed, Dec 14, 1966