A640075C350

View detailed technical data, stock status, and sourcing information for: A640075C350
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-410-8412

Item Name Code

16282

Assigment Date

03/14/1995 (31 years ago)

A tubular shaped item with a round or hexagon peripheral shape having two flat bearing surfaces perpendicular to the axis of the centrally located hole. It is designed to maintain a predetermined distance between assembled parts. The item may be with or without flange(s) of any peripheral shape. The overall length must exceed 25 percent of the outside diameter or distance across peripheral flats of the body. (when the length, outside diameter, and/or distance across peripheral flats are designed as a tolerance, the maximum dimension will be used to determine compliance). For items having other than a round or hexagon peripheral shape, see spacer, plate. Excludes:items with lubricating features, see bearing, sleeve and bushing, sleeve. See also bushing, tapered; spacer, ring; washer, flat; and washer, (as modified).

flat chamfer head style, 3a thread class, right-hand thread direction, 3.500 inches nominal fastener length, 2.000 inches minimum and 3.250 inches maximum thread 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: 2.000 inches minimum and 3.250 inches maximum
Fastener Length: 3.500 inches nominal
Head Style: flat chamfer
Head Diameter: 1.107 inches minimum and 1.125 inches maximum
Head Height: 0.740 inches minimum and 0.750 inches maximum
Locking Feature: strip fastener
Locking Feature: strip threads
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.750 inches
Width Across Flats: 0.625 inches nominal
Thread Quantity Per Inch: 10
Material: steel 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
A640075C350	Socket Head Cap Screw
H467JB001 ITEM NO 81	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-410-8412?

The FSCG of the NSN 5305-01-410-8412 is 5305

Does the NSN 5305-01-410-8412 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-410-8412 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 5305-01-410-8412 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-410-8412 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 5305-01-410-8412 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Tue, Mar 14, 1995