400 6640207 REV-ITEM 12

View detailed technical data, stock status, and sourcing information for: 400 6640207 REV-ITEM 12
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-357-5630

Item Name Code

16282

Assigment Date

04/26/1992 (34 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.

flat chamfer head style, 3a thread class, 2.140 inches nominal thread length, right-hand thread direction, 2.500 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
Thread Length: 2.140 inches nominal
Fastener Length: 2.500 inches nominal
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 or pellet or strip locking feature
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.500 inches
Width Across Flats: 0.375 inches minimum and 0.379 inches maximum
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
Material: nickel alloy 400 fastener
Material Document And Classification: qq-n-281,cl a fed spec single material 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
400 6640207 REV-ITEM 12	Socket Head Cap Screw
6640207-12	Socket Head Cap Screw
M8820068	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-357-5630?

The FSCG of the NSN 5305-01-357-5630 is 5305

Does the NSN 5305-01-357-5630 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5305-01-357-5630 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 5305-01-357-5630 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-357-5630 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 5305-01-357-5630 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Sun, Apr 26, 1992