5305-01-559-5228

Find complete technical information, availability, and procurement data for: 5305-01-559-5228
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-559-5228

Item Name Code

18257

Assigment Date

12/20/2007 (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.

1.125 inches nominal thread length, right-hand thread direction, hexagon head style, 4.406 inches minimum and 4.500 inches maximum fastener length, 2a thread class

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: 1.125 inches nominal
Fastener Length: 4.406 inches minimum and 4.500 inches maximum
Head Style: hexagon
Head Height: 0.272 inches minimum and 0.291 inches maximum
Width Between Flats: 0.612 inches minimum and 0.625 inches maximum
End Item Identification: navy codes 00243b390, 00243b391, 00243b392, 00243b394, 00243b395
Nominal Thread Diameter: 0.438 inches
Thread Quantity Per Inch: 14
Minimum Tensile Strength: 80000 pounds per square inch
Hardness Rating: 80.0 rockwell b minimum overall
Material: steel comp 304 or steel comp 304l or steel comp 305 or steel comp 316 or steel comp 316l or steel comp 384 or steel comp xm-7 overall
Material Document And Classification: astm f593 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response 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
MS35307-401	Hexagon Head Cap Screw
NASM35307-401	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-559-5228?

The FSCG of the NSN 5305-01-559-5228 is 5305

Does the NSN 5305-01-559-5228 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-559-5228 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 5305-01-559-5228 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-559-5228 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 5305-01-559-5228 was assigned to the Federal Catalog?

It was assigned 18 years ago, on Thu, Dec 20, 2007