Boeing MS21279-23 Bolt

Military Standards

Part # MS21279-23

The MS21279-23 bolt features a 0.190" diameter, right-hand threads, and a double hex head with a hole. With a polished finish, it supports heavy loads with a minimum yield strength of 85,000 psi and tensile strength of 130,000 psi for outstanding durability.
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Overview

The MS21279-23 bolt is engineered for applications that demand robust fastening solutions. With a nominal thread diameter of 0.190 inches and a right-hand thread direction, this bolt ensures reliable engagement. The double hexagon head style, featuring a hole, allows for straightforward installation and removal, while the finished head provides a polished appearance. Designed to withstand significant loads, it boasts a minimum yield strength of 85,000 pounds per square inch and a minimum tensile strength of 130,000 pounds per square inch. The surface finish of 32.0 microinches grip enhances durability and wear resistance.

Features & Benefits

Features
  • Thread class 3A with 32 threads per inch for secure fastening.
  • Optimal washer diameter ranging from 0.365 inches to 0.385 inches for improved load distribution.
  • Hardness rating between 24.0 and 35.0 Rockwell C for ideal strength and performance.
Benefits
  • Ensures reliable fastening in demanding environments.
  • Facilitates easy installation and maintenance with its double hexagon design.
  • Provides ideal load-bearing capacity, enhancing overall structural integrity.

Technical Information

ATA Number

49

ATA Chapter

Airborne Auxiliary Power

ATA Group

Airframe Systems

ATA Section

APU FUEL SYSTEM
APU OIL INDICATING SYSTEM

NIIN

010917893

NSN

5306-01-091-7893

FSCG

5306

FSCG Category

Bolts

UNSPSC Code

31161600

UNSPSC Category

Bolts

Lead Time (Days)

251

Multi Spec

MS21279

Certification Status

CERTIFIED

ATA Part Number

MS21279-23

CAGE Code

96906

Commercial Part

Yes

Harmonized Tariff Schedule Code

7318152010

Repairable

No

Specification Part Number

MS21279-23

Supplier Part Number

MS21279-23

Landing Gear Part

No

Leasable

No

Returnable

No

Aircraft Makes

Boeing

Aircraft Models

767-200ER
767-200SF
767-300EREM
767-200ERSF
767-200EM
767-200ERT
15 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.