EF90-172

View detailed technical data, stock status, and sourcing information for: EF90-172
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5330 Packing and Gasket Materials

National Stock Number

5330-01-406-1250

Item Name Code

04214

Assigment Date

12/21/1994 (31 years ago)

A tubular shaped item with a round or hexagon peripheral shape having two flat bearing surfaces perpendicular to the axis of the centrally located hole. It is designed to maintain a predetermined distance between assembled parts. The item may be with or without flange(s) of any peripheral shape. The overall length must exceed 25 percent of the outside diameter or distance across peripheral flats of the body. (when the length, outside diameter, and/or distance across peripheral flats are designed as a tolerance, the maximum dimension will be used to determine compliance). For items having other than a round or hexagon peripheral shape, see spacer, plate. Excludes:items with lubricating features, see bearing, sleeve and bushing, sleeve. See also bushing, tapered; spacer, ring; washer, flat; and washer, (as modified).

2.105 inches minimum and 2.115 inches maximum accommodated shaft diameter, 1.875 inches minimum and 1.877 inches maximum housing bore diameter, flanged case style, vertical-angular sealing element style, 0.302 inches minimum and 0.320 inches maximum seal width

Product Characteristics

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

Accommodated Shaft Diameter: 2.105 inches minimum and 2.115 inches maximum
Seal Width: 0.302 inches minimum and 0.320 inches maximum
Case Style: flanged
Housing Bore Diameter: 1.875 inches minimum and 1.877 inches maximum
Sealing Element Style: vertical-angular
Material: rubber butadiene-acrylonitrile class nbr sealing element
Material: steel corrosion resisting case
Material: steel corrosion resisting spring

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
6743928	Plain Encased Seal
EF90-172	Plain Encased Seal

FAQs

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

What is the FSCG of the NSN 5330-01-406-1250?

The FSCG of the NSN 5330-01-406-1250 is 5330

Does the NSN 5330-01-406-1250 have a Schedule B code assigned?

Yes, the Schedule B code is 8484200000

Does NSN 5330-01-406-1250 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 5330-01-406-1250 contain precious materials?

Item does not contain precious metal.

Does NSN 5330-01-406-1250 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5330-01-406-1250 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Wed, Dec 21, 1994