MS16998-101

View detailed technical data, stock status, and sourcing information for: MS16998-101
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-303-4702

Item Name Code

16282

Assigment Date

06/30/1989 (37 years ago)

3a thread class, flat chamfer head style, 2.440 inches minimum and 2.500 inches maximum fastener length, right-hand thread direction, 1.500 inches minimum 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: 1.500 inches minimum
Fastener Length: 2.440 inches minimum and 2.500 inches maximum
Head Style: flat chamfer
Head Diameter: 0.735 inches minimum and 0.750 inches maximum
Head Height: 0.492 inches minimum and 0.500 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.500 inches
Width Across Flats: 0.375 inches minimum and 0.379 inches maximum
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 170000 pounds per square inch
Hardness Rating: 38.0 rockwell c minimum and 45.0 rockwell c maximum overall
Minimum Yield Strength: 150000 pounds per square inch
Material: steel 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: unrf
Specification/Standard Data: 80205-nas1351 professional/industrial association standard

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-983-8075	No Name Available	09/01/2007

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
23881	Socket Head Cap Screw
2749HX	Socket Head Cap Screw
402510013	Socket Head Cap Screw
MS16998-101	Socket Head Cap Screw
NAS1351-8-40P	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-303-4702?

The FSCG of the NSN 5305-01-303-4702 is 5305

Does the NSN 5305-01-303-4702 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-303-4702 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 5305-01-303-4702 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-303-4702 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 5305-01-303-4702 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Fri, Jun 30, 1989