5305-01-443-7529

Find complete technical information, availability, and procurement data for: 5305-01-443-7529
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-443-7529

Item Name Code

29294

Assigment Date

04/17/1997 (29 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.

3a thread class, 0.621 inches nominal thread length, right-hand thread direction, flat countersunk head style, 1.496 inches nominal fastener length

Product Characteristics

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

Thread Class: 3a
Thread Direction: right-hand
Thread Length: 0.621 inches nominal
Fastener Length: 1.496 inches nominal
Head Style: flat countersunk
Head Diameter: 0.5149 inches nominal
Head Height: 0.081 inches nominal
Grip Diameter: 0.3735 inches minimum and 0.3745 inches maximum
Internal Drive Style: offset cruciform (torque set)
Nominal Thread Diameter: 0.375 inches
Grip Length: 0.562 inches nominal
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 160000 pounds per square inch
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Material: steel comp 4140 or steel comp 4340 or steel comp 8740 overall
Material Document And Classification: mil-s-5626 mil spec single material response or mil-s-5000 mil spec single material response or mil-s-6049 mil spec single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416,ty2,cl2 fed spec single treatment response overall
Thread Series Designator: unjf

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
NAS1581A6T14	Close Tolerance Screw
NAS1581F6T14	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-443-7529?

The FSCG of the NSN 5305-01-443-7529 is 5305

Does the NSN 5305-01-443-7529 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-443-7529 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 5305-01-443-7529 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-443-7529 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 5305-01-443-7529 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Thu, Apr 17, 1997