5305-01-049-1251

Find complete technical information, availability, and procurement data for: 5305-01-049-1251
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-049-1251

Item Name Code

29294

Assigment Date

10/12/1977 (48 years ago)

0.246 inches minimum and 0.323 inches maximum thread length, right-hand thread direction, pan head style, 3a thread class, 1.573 inches minimum and 1.620 inches maximum 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: 0.246 inches minimum and 0.323 inches maximum
Fastener Length: 1.573 inches minimum and 1.620 inches maximum
Head Style: pan
Head Diameter: 0.361 inches minimum and 0.381 inches maximum
Head Height: 0.103 inches minimum and 0.118 inches maximum
Grip Diameter: 0.1885 inches minimum and 0.1895 inches maximum
Internal Drive Style: offset cruciform (torque set)
Nominal Thread Diameter: 0.190 inches
Grip Length: 1.297 inches minimum and 1.327 inches maximum
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 180000 pounds per square inch
Hardness Rating: 39.0 rockwell c minimum and 43.0 rockwell c maximum overall
Surface Finish: 32.0 microinches grip
Material: steel comp e4340 or steel comp 4340 or steel comp 4140 or steel comp 8740 overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416 ty 2 cl 2 fed spec single treatment response overall
Thread Series Designator: unjf
Specification/Standard Data: 86823-51b221 professional/industrial association standard

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
51B221-21	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-049-1251?

The FSCG of the NSN 5305-01-049-1251 is 5305

Does the NSN 5305-01-049-1251 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-049-1251 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 5305-01-049-1251 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-049-1251 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 5305-01-049-1251 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Wed, Oct 12, 1977