79078-4-20

View detailed technical data, stock status, and sourcing information for: 79078-4-20
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 79078-4-20 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

5305-01-449-5433

Item Name Code

16282

Assigment Date

10/04/1997 (28 years ago)

A headed, threaded fastening device over which may be assembled; (1) a stand-off; (2) a flanged bushing with washer(s) and/or a shouldered bushing without a flange, or it may have an internally threaded sleeve that is an integral part of the screw; a washer and an externally thread self-locking bushing that is driven by an inserted driver. Attached to panel by threaded bushing or by flaring end of stand-off, or bushing. Used in conjunction with a speed nut, nut plate, or driven into a threaded hole in the item that the panel is fastened to. May be spring loaded.

1.230 inches minimum and 1.270 inches maximum fastener length, flat fillister head style, 3a thread class, 1.230 inches minimum and 1.270 inches maximum thread length, right-hand thread direction

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: 1.230 inches minimum and 1.270 inches maximum
Fastener Length: 1.230 inches minimum and 1.270 inches maximum
Head Style: flat fillister
Head Diameter: 0.365 inches minimum and 0.375 inches maximum
Head Height: 0.225 inches minimum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Width Across Flats: 0.1875 inches minimum and 0.1900 inches maximum
Nonstandard Thread Pitch Diameter: +0.1897 to 0.1928 inches
Thread Quantity Per Inch: 28
Material: steel overall
Material Document And Classification: nas1351-4 assn std single material response and ff-s-86 fed spec single material response overall
Surface Treatment: nickel overall
Surface Treatment Document And Classification: mil-c-26074 cl 1, grade 8, mil spec single treatment response overall
Thread Series Designator: unrf

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
11454937-3	Socket Head Cap Screw
79078-4-20	Socket Head Cap Screw
D16161-2	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-449-5433?

The FSCG of the NSN 5305-01-449-5433 is 5305

Does the NSN 5305-01-449-5433 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-449-5433 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 5305-01-449-5433 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-449-5433 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 5305-01-449-5433 was assigned to the Federal Catalog?

It was assigned 28 years ago, on Sat, Oct 4, 1997