5305-01-178-2078

Find complete technical information, availability, and procurement data for: 5305-01-178-2078
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-178-2078

Item Name Code

29294

Assigment Date

05/02/1984 (42 years ago)

3a thread class, right-hand thread direction, 0.634 inches minimum and 0.664 inches maximum thread length, flat countersunk head style, 2.196 inches minimum and 2.226 inches maximum fastener 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: 0.634 inches minimum and 0.664 inches maximum
Fastener Length: 2.196 inches minimum and 2.226 inches maximum
Head Style: flat countersunk
Head Diameter: 0.951 inches minimum and 1.039 inches maximum
Grip Diameter: 0.4990 inches minimum and 0.4995 inches maximum
Internal Drive Style: offset cruciform (torque set)
Nominal Thread Diameter: 0.500 inches
Grip Length: 1.562 inches nominal
Thread Quantity Per Inch: 20
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Special Features: internal drive ribbed
Material: steel comp xm-13 overall
Material Document And Classification: ams5629 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Thread Series Designator: unjf

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
LD111-0044-0825	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-178-2078?

The FSCG of the NSN 5305-01-178-2078 is 5305

Does the NSN 5305-01-178-2078 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-178-2078 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 5305-01-178-2078 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-178-2078 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 5305-01-178-2078 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Wed, May 2, 1984