20307-21

View detailed technical data, stock status, and sourcing information for: 20307-21
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-633-8476

Item Name Code

32562

Assigment Date

12/05/2014 (11 years ago)

An item in the form of one or more thin flexible sheets normally designed to form a tight seal between chambers of a valve, and to transmit motion to a valve disk either directly or through a mechanical linkage. The surface of the item(s) may not be formed or molded to have a beaded or rolled edge, ribs, or any other raised surfaces. The item may contain bolt holes and/or a center hole. Excludes:diaphragm, valve, special shaped and gasket.

zzzy criticality code justification, material controlled iaw ss800-ag-man-010/p9290 system certification procedures and criteria manual for deep submergence systems and requires cleaning, packing, and marking iaw mil-std-1622 or mil-std-1330 as deemed applicable; critical item for safety and survival of deep submergence research and rescue vehicals as differentiated by special test features 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 ss800-ag-man-010/p9290 system certification procedures and criteria manual for deep submergence systems and requires cleaning, packing, and marking iaw mil-std-1622 or mil-std-1330 as deemed applicable; critical item for safety and survival of deep submergence research and rescue vehicals as differentiated by special test features

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
20307 FIND 21	Valve Stem Guide
20307 FIND 21D0	Valve Stem Guide
20307-21	Valve Stem Guide
20307-21D0	Valve Stem Guide
7383858-20307-21	Valve Stem Guide
7383858-20307-21D0	Valve Stem Guide
7550478-20307-21	Valve Stem Guide
7550478-20307-21D0	Valve Stem Guide
A7413.001.119	Valve Stem Guide
A7413.001.119D0	Valve Stem Guide
G547-0002-20307-21	Valve Stem Guide
G547-0002-20307-21D0	Valve Stem Guide
H547-0001-20307-21	Valve Stem Guide
H547-0001-20307-21D0	Valve Stem Guide

FAQs

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

What is the FSCG of the NSN 4820-01-633-8476?

The FSCG of the NSN 4820-01-633-8476 is 4820

Does the NSN 4820-01-633-8476 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-633-8476 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 4820-01-633-8476 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-633-8476 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 4820-01-633-8476 was assigned to the Federal Catalog?

It was assigned 11 years ago, on Fri, Dec 5, 2014