801-6556655-A18

View detailed technical data, stock status, and sourcing information for: 801-6556655-A18
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-443-4453

Item Name Code

06672

Assigment Date

04/10/1997 (29 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.

right-hand thread direction, 3a thread class, patch or pellet or strip threads locking feature, headless (setscrew) head style, 0.875 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: right-hand
Fastener Length: 0.875 inches nominal
Head Style: headless (setscrew)
Locking Feature: patch or pellet or strip threads
Point Style: flat
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.312 inches
Width Across Flats: 0.156 inches nominal
Thread Quantity Per Inch: 18
Material: nickel alloy 400 overall
Material: plastic polyamide (nylon) locking feature
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
218020470	Setscrew
801-6556655-A18	Setscrew

FAQs

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

What is the FSCG of the NSN 5305-01-443-4453?

The FSCG of the NSN 5305-01-443-4453 is 5305

Does the NSN 5305-01-443-4453 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5305-01-443-4453 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 5305-01-443-4453 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-443-4453 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 5305-01-443-4453 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Thu, Apr 10, 1997