2590-01-495-6521

Find complete technical information, availability, and procurement data for: 2590-01-495-6521
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Federal Supply Group

Vehicular Equipment Components

Federal Supply Classification

2590 Miscellaneous Vehicular Components

National Stock Number

2590-01-495-6521

Item Name Code

30128

Assigment Date

03/21/2002 (24 years ago)

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes:bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

steel corrosion resisting or rubber synthetic overall material, 4.500 pounds per square inch maximum working pressure, pressurized system for which designed, chain retaining device type, 4.180 inches nominal outside diameter

Product Characteristics

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

Outside Diameter: 4.180 inches nominal
System For Which Designed: pressurized
Retaining Device Type: chain
Maximum Working Pressure: 4.500 pounds per square inch
Material: steel corrosion resisting or rubber synthetic overall
Surface Treatment: zinc overall
Surface Treatment Document And Classification: astm 633,type 3 assn std single treatment response overall
Style Designator: closed cooling system type

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
4320-5	Filler Opening Cap

FAQs

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

What is the FSCG of the NSN 2590-01-495-6521?

The FSCG of the NSN 2590-01-495-6521 is 2590

Does the NSN 2590-01-495-6521 have a Schedule B code assigned?

Yes, the Schedule B code is 4016996000

Does NSN 2590-01-495-6521 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 2590-01-495-6521 contain precious materials?

Item does not contain precious metal.

Does NSN 2590-01-495-6521 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 2590-01-495-6521 was assigned to the Federal Catalog?

It was assigned 24 years ago, on Thu, Mar 21, 2002