FFS86TY40.37516 UNC3AX2.500

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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-285-4922

Item Name Code

16282

Assigment Date

09/14/1988 (37 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.

3a thread class, 2.101 inches minimum and 2.266 inches maximum thread length, flat countersunk head style, right-hand thread direction, 2.460 inches minimum and 2.500 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: 2.101 inches minimum and 2.266 inches maximum
Fastener Length: 2.460 inches minimum and 2.500 inches maximum
Head Style: flat countersunk
Head Diameter: 0.720 inches minimum and 0.781 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.375 inches
Width Across Flats: 0.219 inches minimum and 0.222 inches maximum
Thread Quantity Per Inch: 16
Minimum Tensile Strength: 80000 pounds per square inch
Hardness Rating: 80.0 rockwell b minimum overall
Minimum Yield Strength: 30000 pounds per square inch
Countersink Angle: 82.0 degrees nominal
Material: steel comp 302 or steel comp 304 or steel comp 305 or steel comp 316 or steel comp 384 or steel comp xm-7 overall
Thread Series Designator: unc
Nondefinitive Spec/Std Data: 4 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
375-16NC-3AX2.500 LG	Socket Head Cap Screw
70905486669 PC 59	Socket Head Cap Screw
FFS86TY40.37516 UNC3AX2.500	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-285-4922?

The FSCG of the NSN 5305-01-285-4922 is 5305

Does the NSN 5305-01-285-4922 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-285-4922 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 5305-01-285-4922 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-285-4922 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 5305-01-285-4922 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Wed, Sep 14, 1988