MS21971-1

View detailed technical data, stock status, and sourcing information for: MS21971-1
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5355 Knobs and Pointers

National Stock Number

5355-01-291-0989

Item Name Code

08084

Assigment Date

12/22/1988 (37 years ago)

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

0.067 inches minimum and 0.073 inches maximum mounting hole diameter, 0.077 inches minimum and 0.083 inches maximum width, hole attachment method, 0.217 inches minimum and 0.223 inches maximum distance from mounting hole center to end of pointer, 0.349 inches minimum and 0.355 inches maximum length

Product Characteristics

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

Width: 0.077 inches minimum and 0.083 inches maximum
Length: 0.349 inches minimum and 0.355 inches maximum
Attachment Method: hole
Mounting Hole Diameter: 0.067 inches minimum and 0.073 inches maximum
Distance From Mounting Hole Center To End Of Pointer: 0.217 inches minimum and 0.223 inches maximum
Material: aluminum alloy pointer
Style Designator: bow-tie

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
204547	Dial Pointer
MS21971-1	Dial Pointer

FAQs

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

What is the FSCG of the NSN 5355-01-291-0989?

The FSCG of the NSN 5355-01-291-0989 is 5355

Does the NSN 5355-01-291-0989 have a Schedule B code assigned?

Yes, the Schedule B code is 8531900002

Does NSN 5355-01-291-0989 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 5355-01-291-0989 contain precious materials?

Item does not contain precious metal.

Does NSN 5355-01-291-0989 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 5355-01-291-0989 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Thu, Dec 22, 1988