S21912-2002W

View detailed technical data, stock status, and sourcing information for: S21912-2002W
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-00-939-7583

Item Name Code

17972

Assigment Date

11/16/1965 (60 years ago)

A switch which is actuated by changes in pressure of any gas or liquid or by changes in a vacuum acting upon its sensing element. Excludes:baroswitch; switch,pressure-thermostatic; and switch,sensitive.

1.080 inches nominal outside diameter, 3b 1st end thread class, right-hand 1st end thread direction, 0.715 inches nominal inside diameter, round cross-sectional shape style

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: 0.715 inches nominal
Outside Diameter: 1.080 inches nominal
Inner Conveying Tube Style: annular close-pitch corrugated
Connection Style: swivel nut flare 1st end
End Connection Design: straight 1st end
Connection Type: threaded internal tube 1st end
Features Provided: identical ends
Thread Quantity Per Inch: 12 1st end
Layer Composition And Location: outer layer braided corrosion resistant steel wire
Nominal Thread Size: 1.062 inches 1st end
Seat Angle: 37.0 degrees 1st end
Outer Covering Environmental Protection: corrosion resistant and incombustible
Measuring Method And Length: 21.249 inches nominal overall
Thread Series Designator: un 1st end

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2935-00-921-6230	No Name Available	03/21/1966

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
05984-101	Metallic Hose Assembly
BE12YY201	Metallic Hose Assembly
S21912-2002W	Metallic Hose Assembly

FAQs

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

What is the FSCG of the NSN 4720-00-939-7583?

The FSCG of the NSN 4720-00-939-7583 is 4720

Does the NSN 4720-00-939-7583 have a Schedule B code assigned?

Yes, the Schedule B code is 7307225000

Does NSN 4720-00-939-7583 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 4720-00-939-7583 contain precious materials?

Precious metal content is unknown

Does NSN 4720-00-939-7583 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 4720-00-939-7583 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Tue, Nov 16, 1965