5305-00-678-9659

Find complete technical information, availability, and procurement data for: 5305-00-678-9659
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-678-9659

Item Name Code

16282

Assigment Date

01/01/1961 (65 years ago)

left-hand thread direction, 3a thread class, 0.650 inches minimum thread length, watertight head style, 6.119 inches nominal 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: left-hand
Thread Length: 0.650 inches minimum
Fastener Length: 6.119 inches nominal
Head Style: watertight
Head Diameter: 0.370 inches nominal
Head Height: 0.244 inches minimum and 0.250 inches maximum
Locking Feature: distortions threads
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Width Across Flats: 0.1875 inches minimum and 0.1900 inches maximum
Thread Quantity Per Inch: 28
Hardness Rating: 35.0 rockwell c minimum and 40.0 rockwell c maximum overall
Material: steel comp 8740 or steel comp 4340 overall
Material Document And Classification: ams 6322 assn std 1st material response or ams 6415 assn std 2nd material response overall
Surface Treatment: chromium grip
Surface Treatment: chromium sides of head
Surface Treatment Document And Classification: qq-c-320,class 2 fed spec single treatment response grip
Surface Treatment Document And Classification: qq-c-320,class 2 fed spec single treatment response sides of head
Thread Series Designator: unf

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
695162	Socket Head Cap Screw
71111-428-1	Socket Head Cap Screw
730245	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-678-9659?

The FSCG of the NSN 5305-00-678-9659 is 5305

Does the NSN 5305-00-678-9659 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-678-9659 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 5305-00-678-9659 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-678-9659 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 5305-00-678-9659 was assigned to the Federal Catalog?

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