MS27576-4-18R

View detailed technical data, stock status, and sourcing information for: MS27576-4-18R
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-459-1112

Item Name Code

27851

Assigment Date

12/26/1969 (56 years ago)

3a thread class, right-hand thread direction, 1.543 inches minimum and 1.563 inches maximum fastener length, 0.282 inches minimum and 0.338 inches maximum thread length, dished hexagon 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 Class: 3a
Thread Direction: right-hand
Thread Length: 0.282 inches minimum and 0.338 inches maximum
Fastener Length: 1.543 inches minimum and 1.563 inches maximum
Head Style: dished hexagon
Head Height: 0.126 inches minimum and 0.141 inches maximum
Width Between Flats: 0.430 inches minimum and 0.439 inches maximum
Grip Diameter: 0.2483 inches minimum and 0.2492 inches maximum
Shank Unthreaded Hole Diameter: 0.076 inches minimum and 0.086 inches maximum first hole
Nominal Thread Diameter: 0.250 inches
Grip Length: 1.125 inches minimum and 1.141 inches maximum
Thread Quantity Per Inch: 28
Hardness Rating: 36.0 rockwell c minimum and 41.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center: 1.443 inches minimum and 1.473 inches maximum first hole
Surface Finish: 63.0 microinches bearing surface of head
Surface Finish: 63.0 microinches grip
Special Features: w/retaining element on shank
Material: steel overall
Material Document And Classification: mil-b-83050 mil spec single material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 2 fed spec all treatment responses overall
Thread Series Designator: unjf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5306-00-557-8578	No Name Available	02/01/1989
5306-01-071-9527	No Name Available	09/01/1984

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
CIPRD-MS27576-4-18R	Close Tolerance Bolt
MS27576-4-18R	Close Tolerance Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-459-1112?

The FSCG of the NSN 5306-00-459-1112 is 5306

Does the NSN 5306-00-459-1112 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-459-1112 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 5306-00-459-1112 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-459-1112 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 5306-00-459-1112 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Fri, Dec 26, 1969