S78333

View detailed technical data, stock status, and sourcing information for: S78333
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-082-6708

Item Name Code

16282

Assigment Date

01/01/1961 (65 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

1.250 inches nominal fastener length, right-hand thread direction, 2a thread class, 1.156 inches minimum thread length, flat chamfer head style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 2a
Thread Direction: right-hand
Thread Length: 1.156 inches minimum
Fastener Length: 1.250 inches nominal
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: 0.312 inches nominal
Hole Quantity: 2
Hole Type: drilled
Thread Quantity Per Inch: 16
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 45.0 rockwell c maximum overall
Minimum Yield Strength: 130000 pounds per square inch
Hole Configuration Style: double hexagon flats
Material: steel overall
Material Document And Classification: 66 fed std single material response 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: unc
Nondefinitive Spec/Std Data: 1 type
Departure From Cited Designator: as modified by head hole configuration

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
S78333	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-082-6708?

The FSCG of the NSN 5305-00-082-6708 is 5305

Does the NSN 5305-00-082-6708 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-082-6708 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 5305-00-082-6708 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-082-6708 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 5305-00-082-6708 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961