5305-01-445-6874

Find complete technical information, availability, and procurement data for: 5305-01-445-6874
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-445-6874

Item Name Code

29294

Assigment Date

06/10/1997 (29 years ago)

A washer which is round with a centrally located hole. One bearing surface is smooth, flat, and unbroken, the other bearing surface is smooth, unbroken, and is raised to form a curved or spherical contour. See also washer (1), concave. Excludes:bearing, washer thrust.

right-hand thread direction, 0.983 inches minimum and 1.013 inches maximum fastener length, flat countersunk head style, 3a thread class, 0.498 inches nominal thread 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: 0.498 inches nominal
Fastener Length: 0.983 inches minimum and 1.013 inches maximum
Head Style: flat countersunk
Head Diameter: 0.447 inches minimum and 0.507 inches maximum
Grip Diameter: 0.2485 inches minimum and 0.2495 inches maximum
Single Shear Strength: 132000 pounds per square inch
Internal Drive Style: offset cruciform (torque set)
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.490 inches minimum and 0.510 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 240000 pounds per square inch
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Special Features: dry film lubricant-threads only
Material: cobalt comp mp-35-n overall
Material Document And Classification: ams 5844 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 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
03A415-4-8L	Close Tolerance Screw
PBF1570-4-8L	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-445-6874?

The FSCG of the NSN 5305-01-445-6874 is 5305

Does the NSN 5305-01-445-6874 have a Schedule B code assigned?

Yes, the Schedule B code is 8105900000

Does NSN 5305-01-445-6874 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 5305-01-445-6874 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-445-6874 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 5305-01-445-6874 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Tue, Jun 10, 1997