5305-01-556-7402

Find complete technical information, availability, and procurement data for: 5305-01-556-7402
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-556-7402

Item Name Code

16282

Assigment Date

10/04/2007 (18 years ago)

A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see insert, engine valve seat.

right-hand thread direction, 4.9 millimeters nominal head diameter, 25.0 millimeters nominal fastener length, 23.0 millimeters nominal thread length, flat countersunk head style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Direction: right-hand
Thread Length: 23.0 millimeters nominal
Fastener Length: 25.0 millimeters nominal
Head Style: flat countersunk
Head Diameter: 4.9 millimeters nominal
Internal Drive Style: hexagon
End Item Identification: 2350-01-368-9500, carrier,ammunition,tracked field artillery ammunition support vehicle (faagv, m992)
Nominal Thread Diameter: 8.0 millimeters
Width Across Flats: 5.0 millimeters nominal
Minimum Tensile Strength: 23 pounds per square inch
Thread Pitch In Millimeters: 1.25
External Thread Tolerance Class: 6g
Countersink Angle: 90.0 degrees nominal
Part Name Assigned By Controlling Agency: hexagon socket countersunk head screws
Material: steel property class 8.8 overall
Material Document And Classification: iso 8992 national std/spec single material response overall
Surface Treatment: zinc overall
Surface Treatment Document And Classification: iso 10683 national std/spec single treatment response overall
Thread Series Designator: iso m

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
ISO 10642-M8X25-8.8-A2J	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-556-7402?

The FSCG of the NSN 5305-01-556-7402 is 5305

Does the NSN 5305-01-556-7402 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-556-7402 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 5305-01-556-7402 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-556-7402 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 5305-01-556-7402 was assigned to the Federal Catalog?

It was assigned 18 years ago, on Thu, Oct 4, 2007