BM38620

View detailed technical data, stock status, and sourcing information for: BM38620
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Federal Supply Group

Engines, Turbines, and Components

Federal Supply Classification

2815 Diesel Engines and Components

National Stock Number

2815-00-532-3822

Item Name Code

16509

Assigment Date

01/01/1963 (63 years ago)

2.0000 inches nominal pinhole diameter, concave head style, 5.125 inches nominal diameter, 6.125 inches nominal overall height, hole oil passage type

Product Characteristics

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

Head Style: concave
Overall Height: 6.125 inches nominal
Diameter: 5.125 inches nominal
Oil Passage Type: hole
Pinhole Diameter: 2.0000 inches nominal
Surface Finish: finished
Finished Size Designation: standard
Skirt Type: solid
Skirt Bottom Cutaway Feature: not included
Ring Groove Quantity: 4
Ring Groove Width: 0.0760 inches minimum and 0.1580 inches maximum 1st ring
Ring Groove Width: 0.0760 inches minimum and 0.1580 inches maximum 2nd ring
Ring Groove Width: 0.0760 inches minimum and 0.1580 inches maximum 3rd ring
Ring Groove Width: 0.1800 inches minimum and 0.2500 inches maximum 4th ring
Groove Taper Angle: 10 degrees
Ring Groove Diameter: 4.640 inches nominal 1st ring
Ring Groove Diameter: 4.640 inches nominal 2nd ring
Ring Groove Diameter: 4.640 inches nominal 3rd ring
Ring Groove Diameter: 4.600 inches nominal 4th ring
Oil Groove: not included
Distance From Pin Hole Center To Extreme Top: 3.875 inches nominal
Pin Hole Bushing: included
Distance Between Pin Bosses: 2.462 inches nominal
Retaining Ring Groove: included
Pin: included
Pin Type For Which Designed: floating
Ring: included
Carbon Groove: included
Material: aluminum alloy
Weight: 96.0 ounces

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2815-00-322-0616	No Name Available	06/01/1977
2815-00-507-6301	No Name Available	10/05/1966
2815-00-885-2248	No Name Available	02/12/1968

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
103900	Internal Combustion Engin Piston
113440	Internal Combustion Engin Piston
AR06070	Internal Combustion Engin Piston
BM32380	Internal Combustion Engin Piston
BM38620	Internal Combustion Engin Piston

FAQs

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

What is the FSCG of the NSN 2815-00-532-3822?

The FSCG of the NSN 2815-00-532-3822 is 2815

Does the NSN 2815-00-532-3822 have a Schedule B code assigned?

Yes, the Schedule B code is 8409998000

Does NSN 2815-00-532-3822 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 2815-00-532-3822 contain precious materials?

Precious metal content is unknown

Does NSN 2815-00-532-3822 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 2815-00-532-3822 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963