5305-01-466-8580

Find complete technical information, availability, and procurement data for: 5305-01-466-8580
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-466-8580

Item Name Code

18257

Assigment Date

08/04/1999 (26 years ago)

A cylindrical item with or without flange(s), designed to be inserted in a pump casing or secured to the impeller of a centrifugal pump. It is used for the purpose of providing a close running clearance between the impeller and casing in order to prevent or overcome leakage due to erosion. It may also be used as a diffuser ring in the suction and discharge throats of valves.

2.500 inches minimum and 4.120 inches maximum thread length, right-hand thread direction, 2a thread class, 10.000 inches nominal fastener length, flat chamfer head style

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 Direction: right-hand
Thread Length: 2.500 inches minimum and 4.120 inches maximum
Fastener Length: 10.000 inches nominal
Head Style: flat chamfer
Head Diameter: 1.479 inches minimum and 1.500 inches maximum
Head Height: 0.988 inches minimum and 1.000 inches maximum
Nominal Thread Diameter: 1.000 inches
Thread Quantity Per Inch: 8
Minimum Tensile Strength: 90000 pounds per square inch
Minimum Yield Strength: 58000 pounds per square inch
Chamfer Angle: 30.0 degrees nominal and 45.0 degrees maximum
Material: steel overall
Material Document And Classification: sae j429 gr 5 assn std 1st material response overall
Surface Treatment: cadmium overall
Thread Series Designator: unc

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
1-8UNC-2A X 10 IN LG	Hexagon Head Cap Screw
5210115 PART 262	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-466-8580?

The FSCG of the NSN 5305-01-466-8580 is 5305

Does the NSN 5305-01-466-8580 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-466-8580 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 5305-01-466-8580 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-466-8580 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 5305-01-466-8580 was assigned to the Federal Catalog?

It was assigned 26 years ago, on Wed, Aug 4, 1999