4720-01-140-0740

Find complete technical information, availability, and procurement data for: 4720-01-140-0740
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-01-140-0740

Item Name Code

31934

Assigment Date

10/07/1982 (43 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.

round cross-sectional shape style, 7.250 inches nominal inside diameter, black exterior color, 7.500 inches nominal outside diameter, 50.0 maximum shore durometer a nonmetallic hardness rating

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: 7.250 inches nominal
Nonmetallic Hardness Rating: 50.0 maximum shore durometer a
Outside Diameter: 7.500 inches nominal
Exterior Color: black
Minimum Tensile Strength: 1500 pounds per square inch
Inside Surface Condition: smooth
Measuring Method And Length: 4.000 inches nominal overall
Special Features: scarf 0.500 in.,vulcanize
Flexibility: flexible
Material: rubber synthetic tube
Media For Which Designed: air single response

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
4675255-0F30	Nonmetallic Tubing
87643-2520	Nonmetallic Tubing
87643-2520 IT F-30	Nonmetallic Tubing

FAQs

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

What is the FSCG of the NSN 4720-01-140-0740?

The FSCG of the NSN 4720-01-140-0740 is 4720

Does the NSN 4720-01-140-0740 have a Schedule B code assigned?

Yes, the Schedule B code is 4009110000

Does NSN 4720-01-140-0740 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 4720-01-140-0740 contain precious materials?

Item does not contain precious metal.

Does NSN 4720-01-140-0740 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 4720-01-140-0740 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Thu, Oct 7, 1982