91121819

View detailed technical data, stock status, and sourcing information for: 91121819
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-281-3177

Item Name Code

16282

Assigment Date

01/01/1963 (63 years ago)

0.762 inches minimum and 0.875 inches maximum thread length, flat chamfer head style, right-hand thread direction, 0.845 inches minimum and 0.875 inches maximum fastener length, 3a thread class

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: 0.762 inches minimum and 0.875 inches maximum
Fastener Length: 0.845 inches minimum and 0.875 inches maximum
Head Style: flat chamfer
Head Diameter: 0.550 inches minimum and 0.562 inches maximum
Head Height: 0.368 inches minimum and 0.375 inches maximum
Hole Diameter: 0.064 inches nominal
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.375 inches
Width Across Flats: 0.3125 inches minimum and 0.3160 inches maximum
Hole Quantity: 3
Hole Type: drilled
Thread Quantity Per Inch: 24
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
Hole Configuration Style: round internal hexagon
Material: steel overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416 ty 2 cl 3 fed spec single treatment response overall
Thread Series Designator: unf
Nondefinitive Spec/Std Data: 6 type

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-541-0102	No Name Available	01/01/1983

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
43S47665-4770	Socket Head Cap Screw
650270PC11	Socket Head Cap Screw
91121819	Socket Head Cap Screw
MS24678-44	Socket Head Cap Screw
MS24678-44C	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-281-3177?

The FSCG of the NSN 5305-00-281-3177 is 5305

Does the NSN 5305-00-281-3177 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-281-3177 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 5305-00-281-3177 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-281-3177 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 5305-00-281-3177 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963