5305-01-412-1221

Find complete technical information, availability, and procurement data for: 5305-01-412-1221
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-412-1221

Item Name Code

18257

Assigment Date

04/12/1995 (31 years ago)

A cylindrically-shaped headless item, having a shank at one or both ends. It is used for aligning, fastening, or transfer of torque and/or thrust by fitting into corresponding holes of another item. It may be threaded on one end.

hexagon head style, 0.639 inches nominal thread length, 0.750 inches nominal fastener length, 2a thread class, 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: 2a
Thread Direction: right-hand
Thread Length: 0.639 inches nominal
Fastener Length: 0.750 inches nominal
Head Style: hexagon
Head Height: 0.195 inches minimum and 0.211 inches maximum
Width Between Flats: 0.489 inches minimum and 0.500 inches maximum
Locking Feature: strip fastener
Locking Feature: strip threads
Nominal Thread Diameter: 0.312 inches
Thread Quantity Per Inch: 18
Material: steel comp 301 or steel comp 302 or steel comp 302b or steel comp 303 or steel comp 303se or steel comp 304 or steel comp 304l or steel comp 305 or steel comp 308 or steel comp 309 or steel comp 309s or steel comp 310 or steel comp 310s or steel comp 314 or steel comp 316 or steel comp 316l or steel comp 317 or steel comp 321 or steel comp 347 or steel comp 348 or steel comp 384 or steel comp 385 overall
Thread Series Designator: unc

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
A720031C075	Hexagon Head Cap Screw
H522B001 ITEM NO 171	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-412-1221?

The FSCG of the NSN 5305-01-412-1221 is 5305

Does the NSN 5305-01-412-1221 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-412-1221 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 5305-01-412-1221 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-412-1221 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 5305-01-412-1221 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Wed, Apr 12, 1995