5305-01-050-1491

Find complete technical information, availability, and procurement data for: 5305-01-050-1491
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-050-1491

Item Name Code

16282

Assigment Date

11/01/1977 (48 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.

4.920 inches minimum and 5.000 inches maximum fastener length, right-hand thread direction, 1.500 inches minimum thread length, flat chamfer head style, 3a thread class

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: 1.500 inches minimum
Fastener Length: 4.920 inches minimum and 5.000 inches maximum
Head Style: flat chamfer
Head Diameter: 0.735 inches minimum and 0.750 inches maximum
Head Height: 0.492 inches minimum and 0.500 inches maximum
Locking Feature: patch threads
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.500 inches
Width Across Flats: 0.375 inches nominal
Thread Quantity Per Inch: 13
Minimum Tensile Strength: 180000 pounds per square inch
Hardness Rating: 39.0 rockwell c minimum and 45.0 rockwell c maximum fastener
Minimum Yield Strength: 155000 pounds per square inch
Special Features: critical item hydrogen embrittlement relief required
Material: plastic polyamide (nylon) locking feature
Material: steel fastener
Surface Treatment: zinc and chromate fastener
Surface Treatment Document And Classification: astm b633,ty 2,cl 3 assn std single treatment response fastener
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
3176207-C-274	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-050-1491?

The FSCG of the NSN 5305-01-050-1491 is 5305

Does the NSN 5305-01-050-1491 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-050-1491 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 5305-01-050-1491 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-050-1491 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 5305-01-050-1491 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Tue, Nov 1, 1977