711-558877 ITEM #18

View detailed technical data, stock status, and sourcing information for: 711-558877 ITEM #18
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-249-7631

Item Name Code

06657

Assigment Date

02/16/1987 (39 years ago)

flat countersunk head style, 1.015 inches minimum and 1.175 inches maximum thread length, 1.190 inches minimum and 1.250 inches maximum 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: 1.015 inches minimum and 1.175 inches maximum
Fastener Length: 1.190 inches minimum and 1.250 inches maximum
Head Style: flat countersunk
Head Diameter: 0.452 inches minimum and 0.507 inches maximum
Internal Drive Style: slot
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 80000 pounds per square inch
Countersink Angle: 80.0 degrees minimum and 82.0 degrees maximum
Screw Material: nickel alloy 400
Screw Material Document And Classification: qq-n-281,cl a fed spec single material response
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
2270-222 ITEM #18	Machine Screw
711-558877 ITEM #18	Machine Screw
711-5588877 ITEM 18	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-249-7631?

The FSCG of the NSN 5305-01-249-7631 is 5305

Does the NSN 5305-01-249-7631 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5305-01-249-7631 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 5305-01-249-7631 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-249-7631 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 5305-01-249-7631 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Mon, Feb 16, 1987