FF1

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-346-9675

Item Name Code

35935

Assigment Date

10/12/1991 (34 years ago)

A metallic, threaded, screw-shaped item used in hydraulic brake cylinders, hydraulic power units, missile launching hydraulic systems, and the like, for the purpose of providing a means of releasing air form and/or flushing a hydraulic system. It may be furnished with or without a dust cap. Excludes:spring loaded or automatic type air pressure relief valves, and bolt, fluid passage.

threaded internal pipe all ends connection type, plain,optional end(pipe) all ends connection style, right-hand all ends thread direction, 0.750 inches all ends nominal thread size, plastic polyvinyl chloride (pvc) body material

Product Characteristics

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

Thread Direction: right-hand all ends
Connection Style: plain,optional end(pipe) all ends
Connection Type: threaded internal pipe all ends
Nominal Thread Size: 0.750 inches all ends
Material: plastic polyvinyl chloride (pvc) body
Media For Which Designed: water, fresh single response
Thread Series Designator: npt all ends

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
FF1	Vent Valve

FAQs

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

What is the FSCG of the NSN 4820-01-346-9675?

The FSCG of the NSN 4820-01-346-9675 is 4820

Does the NSN 4820-01-346-9675 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809050

Does NSN 4820-01-346-9675 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 4820-01-346-9675 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-346-9675 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 4820-01-346-9675 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Sat, Oct 12, 1991