4720-01-025-0357

Find complete technical information, availability, and procurement data for: 4720-01-025-0357
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-01-025-0357

Item Name Code

20311

Assigment Date

07/24/1976 (50 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.

3b 1st end thread class, round cross-sectional shape style, 0.250 inches nominal inside diameter, right-hand 1st end thread direction, -40.0 fahrenheit and 200.0 fahrenheit single response temp 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
Thread Class: 3b 1st end
Thread Direction: right-hand 1st end
Inside Diameter: 0.250 inches nominal
Temp Rating: -40.0 fahrenheit and 200.0 fahrenheit single response
Outside Diameter: 0.531 inches nominal
Minimum Inside Bending Radius: 4.000 inches
Exterior Color: black
Connection Style: swivel nut flare 1st end
End Connection Design: straight 1st end
Connection Type: threaded internal tube 1st end
Features Provided: reusable end fittings and nonskive
Burst Test Pressure: 11000.0 pounds per square inch
Layer Composition And Location: 1st layer braided steel wire and outer layer molded rubber, synthetic
Maximum Operating Pressure: 2750.0 pounds per square inch
Nominal Thread Size: 0.438 inches 1st end
Seat Angle: 37.0 degrees 1st end
Hydrostatic Test Pressure: 5500.0 pounds per square inch
Outer Covering Environmental Protection: abrasion resistant and oil resistant and weatherproof
Inside Surface Condition: smooth
Measuring Method And Length: 46.000 inches nominal excluding end fittings
Media For Which Designed: air and fuel/oil, hydrocarbon and water single response
Thread Series Designator: unf 1st end

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
030-304-046-002	Nonmetallic Hose Assembly
030-804-046-002	Nonmetallic Hose Assembly
4210606-4-4-4-47.675	Nonmetallic Hose Assembly
4210606-4-4-4-47.68	Nonmetallic Hose Assembly

FAQs

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

What is the FSCG of the NSN 4720-01-025-0357?

The FSCG of the NSN 4720-01-025-0357 is 4720

Does NSN 4720-01-025-0357 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 4720-01-025-0357 contain precious materials?

Precious metal content is unknown

Does NSN 4720-01-025-0357 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 4720-01-025-0357 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Sat, Jul 24, 1976