4720-00-844-3657

Find complete technical information, availability, and procurement data for: 4720-00-844-3657
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-00-844-3657

Item Name Code

17271

Assigment Date

01/01/1962 (64 years ago)

A length of tubing, straight, or prebent to a predetermined angle, with added component(s) that forms an end connection on one or both ends. For flexible tube assemblies, see hose assembly (as modified). For items having perforations in the tubing or attachments, see tube assembly, fire extinguishing system. Excludes:items having integral preformed or plain ends, tube, bent (as modified), and items which are branched or forked.

0.281 inches nominal wall thickness, 1.500 inches nominal second arm length, rubber synthetic cover material, 2.250 inches nominal inside diameter, 1.500 inches nominal first arm length

Product Characteristics

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

Wall Thickness: 0.281 inches nominal
Inside Diameter: 2.250 inches nominal
First Arm Length: 1.500 inches nominal
Second Arm Length: 1.500 inches nominal
Material: rubber synthetic cover
Material: rubber synthetic overall
Style Designator: straight corrugated
Working Length: 18.000 inches nominal
Nondefinitive Spec/Std Data: 5 type and 2 grade and 2 class
Fsc Application Data: coolant system,engine,non-aircraft

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
14284-105	Preformed Hose
4720008443657	Preformed Hose
67C41555-4	Preformed Hose
966B44143	Preformed Hose
J20-2	Preformed Hose
J20/2ECLTA457X57	Preformed Hose
MS51008-18E	Preformed Hose
SAE-20/2ECLT-A-457X57	Preformed Hose
SAE-J20/2	Preformed Hose

FAQs

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

What is the FSCG of the NSN 4720-00-844-3657?

The FSCG of the NSN 4720-00-844-3657 is 4720

Does the NSN 4720-00-844-3657 have a Schedule B code assigned?

Yes, the Schedule B code is 4002990000

Does NSN 4720-00-844-3657 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 4720-00-844-3657 contain precious materials?

Item does not contain precious metal.

Does NSN 4720-00-844-3657 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 4720-00-844-3657 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962