79078-4-28

View detailed technical data, stock status, and sourcing information for: 79078-4-28
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part 79078-4-28 to receive an up to date pricing and availability quote by email.

Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-098-7777

Item Name Code

16282

Assigment Date

08/07/1980 (46 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.

3a thread class, 1.000 inches minimum thread length, 1.730 inches minimum and 1.770 inches maximum fastener length, right-hand thread direction, 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: 3a
Thread Direction: right-hand
Thread Length: 1.000 inches minimum
Fastener Length: 1.730 inches minimum and 1.770 inches maximum
Head Style: flat chamfer
Head Diameter: 0.365 inches minimum and 0.375 inches maximum
Head Height: 0.244 inches minimum and 0.250 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Width Across Flats: 0.188 inches minimum and 0.190 inches maximum
Thread Quantity Per Inch: 28
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: nickel overall
Surface Treatment Document And Classification: mil-c-26074,cl 1 gr b mil spec single treatment response overall
Thread Series Designator: unrf
Nondefinitive Spec/Std Data: 6 type
Departure From Cited Designator: as modified by surface finish

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
11454937-4	Socket Head Cap Screw
79078-4-28	Socket Head Cap Screw
D16161-4	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-098-7777?

The FSCG of the NSN 5305-01-098-7777 is 5305

Does the NSN 5305-01-098-7777 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-098-7777 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 5305-01-098-7777 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-098-7777 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 5305-01-098-7777 was assigned to the Federal Catalog?

It was assigned 46 years ago, on Thu, Aug 7, 1980