Boeing MS21250-05008 Bolt

Military Standards

Part # MS21250-05008

The MS21250-05008 bolt is a 1.678" steel fastener with a 0.579" thread and a double hexagon head for easy installation. It offers a Rockwell C hardness of 39.0-43.0 and has a corrosion-resistant cadmium/chromate finish, perfect for harsh environments.
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Overview

The MS21250-05008 bolt is engineered for applications that demand reliable fastening solutions. With a nominal fastener length of 1.678 inches and a minimum thread length of 0.579 inches, this bolt ensures secure connections across several assemblies. The double hexagon head style, featuring a hole, simplifies installation and removal. Constructed from steel compositions such as E4340, 8740, or 4140, this bolt is designed to withstand stress, with a hardness rating ranging from 39.0 to 43.0 Rockwell C. The surface treatment of cadmium and chromate enhances corrosion resistance, making it suitable for challenging environments.

Features & Benefits

Features
  • Grip diameter ranging from 0.3110 inches to 0.3120 inches for precise fit.
  • Right-hand thread direction with a thread quantity of 24 per inch.
  • Optimal washer thickness of 0.82 inches nominal for added stability.
Benefits
  • Ensures secure fastening in demanding environments.
  • Facilitates easy installation and maintenance with its double hexagon design.
  • Provides excellent tensile strength of 180,000 pounds per square inch for reliable performance.

Technical Information

ATA Number

52,
71

ATA Chapter

Doors
Power Plant

ATA Group

Structure
Power Plant

ATA Section

WEAPON BAY DOOR
Cowling

NIIN

016164012

NSN

5306-00-990-6918

FSCG

5306

FSCG Category

Bolts

UNSPSC Code

31161622

UNSPSC Category

Shear bolt

Lead Time (Days)

432

Multi Spec

MIL-S-6049

Certification Status

CERTIFIED

ATA Part Number

MS21250-05008

CAGE Code

96906

Commercial Part

Yes

Harmonized Tariff Schedule Code

7318152095

Repairable

No

Specification Part Number

MS21250-05008

Supplier Part Number

MS21250-05008

Landing Gear Part

No

Leasable

No

Returnable

No

Aircraft Makes

Airbus
Boeing

Aircraft Models

DC8
MD90
A320-200 NEO
DC9
A320-200
A321-200 NEO
6 more

Shipping Details

ITAR Compliant

No

Part Explosive

No

ECCN

EAR99

Dry Ice

No
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Commercial Spares
DISCLAIMER: Product information provided “as is.” Boeing may add, change, discontinue or remove this information at any time. Product photos may not be exact match to product delivered. See terms & conditions.