4720-01-161-4790

Find complete technical information, availability, and procurement data for: 4720-01-161-4790
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-01-161-4790

Item Name Code

31934

Assigment Date

09/06/1983 (42 years ago)

A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes:packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.

-65.0 fahrenheit and 212.0 fahrenheit single response temp rating, round cross-sectional shape style, 35.0 minimum shore durometer a and 45.0 maximum shore durometer a nonmetallic hardness rating, 0.359 inches minimum and 0.391 inches maximum inside diameter, 0.577 inches minimum and 0.673 inches maximum outside diameter

Product Characteristics

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

Cross-Sectional Shape Style: round
Inside Diameter: 0.359 inches minimum and 0.391 inches maximum
Nonmetallic Hardness Rating: 35.0 minimum shore durometer a and 45.0 maximum shore durometer a
Temp Rating: -65.0 fahrenheit and 212.0 fahrenheit single response
Outside Diameter: 0.577 inches minimum and 0.673 inches maximum
Features Provided: flexible
Outer Covering Environmental Protection: ozone resistant
Inside Surface Condition: smooth
Measuring Method And Length: 1200.000 inches nominal overall
Material: rubber chloroprene class cr tube
Material Document And Classification: mil-r-6855, class 2, grade 40 mil spec single material response tube
Media For Which Designed: fuel/oil, hydrocarbon single response
Nondefinitive Spec/Std Data: 60 grade and 1 class

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
P5068-2-6H	Nonmetallic Tubing

FAQs

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

What is the FSCG of the NSN 4720-01-161-4790?

The FSCG of the NSN 4720-01-161-4790 is 4720

Does the NSN 4720-01-161-4790 have a Schedule B code assigned?

Yes, the Schedule B code is 4009110000

Does NSN 4720-01-161-4790 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 4720-01-161-4790 contain precious materials?

Precious metal content is unknown

Does NSN 4720-01-161-4790 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 4720-01-161-4790 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Tue, Sep 6, 1983