28-40-28

View detailed technical data, stock status, and sourcing information for: 28-40-28
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5975 Electrical Hardware and Supplies

National Stock Number

5975-00-984-5792

Item Name Code

04455

Assigment Date

10/26/1966 (59 years ago)

An item of metal and/or insulating material having a smooth interior with rounded edges to prevent damage to the insulation of the wire or cable emerging there-from, designed to fit through panel(s) or the wall of a junction box. It may be designed to snap into a knockout hole, or designed with an external thread and furnished with or without a locking nut. For items designed to couple conduit to junction box, see box connector, electrical. See also bushing, electrical conduit and bushing, nonmetallic. For items having hexagonal shoulders, see chase nipple, conduit.

2a thread class, 1.125 inches nominal thread length, un thread series, 1.125 inches nominal overall height, 2.437 inches nominal body outside diameter

Product Characteristics

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

Thread Class: 2a
Thread Length: 1.125 inches nominal
Overall Height: 1.125 inches nominal
Body Outside Diameter: 2.437 inches nominal
Thread Series: un
Thread Quantity Per Inch: 16
Nominal Thread Size: 1.250 inches
Base Thread Location: external
Accommodation Hole Inside Diameter: 2.000 inches nominal
Material: aluminum body
Surface Treatment: anodize body
Style Designator: threaded

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
28-40-28	Electrical Conductor Bushing
5M13-28	Electrical Conductor Bushing

FAQs

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

What is the FSCG of the NSN 5975-00-984-5792?

The FSCG of the NSN 5975-00-984-5792 is 5975

Does the NSN 5975-00-984-5792 have a Schedule B code assigned?

Yes, the Schedule B code is 8543909000

Does NSN 5975-00-984-5792 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 5975-00-984-5792 contain precious materials?

Item does not contain precious metal.

Does NSN 5975-00-984-5792 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 5975-00-984-5792 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Wed, Oct 26, 1966