Nut, Self-Locking, Hexagon

Part # 99F12-428

The 99F12-428 Lock Nut is a robust, high-performance aviation component made from steel with a corrosion-resistant insert. Featuring a right-hand thread and all-metal design, it ensures secure fastening. With a silver finish, it's durable and suited for extreme environments up to 1200°F.
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Overview

The Nut is a self-locking hexagon nut with the part number 99F12-428. This nut features a prevailing torque all metal design, which enhances its locking capability. It is compatible with unified national joint fine thread series and is rated for temperatures up to 1200.0 Fahrenheit nominal. The nut has a chamfered bearing surface and is constructed with silver on all surfaces, making it suitable for high-performance applications. With a minimum nut height of 0.280 inches and a maximum of 0.328 inches, along with a width across flats ranging from 0.430 inches to 0.439 inches, this nut is engineered for optimal fit and function.

Features & Benefits

Features
  • Constructed from steel with a corrosion-resisting locking insert for excellent durability.
  • Hexagon nut design with a right-hand thread and a prevailing torque all-metal locking feature.
  • Silver overall surface treatment for improved corrosion resistance.
  • Temperature rating of 1200 degrees Fahrenheit nominal for high-heat applications.
Benefits
  • Ensures secure fastening in demanding aviation environments.
  • Resists corrosion, extending the lifespan of the nut.
  • Provides reliable performance under high-temperature conditions.
  • Meets industry standards for quality and reliability in critical applications.

Technical Information

NIIN

013163894

NSN

5310-01-316-3894

FSCG

5310

FSCG Category

Nuts and Washers

UNSPSC Code

31161700

UNSPSC Category

Nuts

Lead Time (Days)

375

Not For Sale

No

Product Class Description

Nuts

Harmonized Tariff Schedule Code

7318160030

Storage Required

No

Unit Of Measure

EA

Pieces Per Pound

0

DFAR Applicable

No

Revision Level Applicable

No

Product Class

31161700

Material Composition

CRES

Design Holder CAGE Code

56878

Design Holder

SPS TECHNOLOGIES LLC DBA AEROSPACE

Potential Alternates

5310013163894

Aircraft Makes

Boeing

Aircraft Models

737-200
737-500
747
727-200
MD80
727-100
3 more

Shipping Details

Dry Ice

No

ECCN

EAR99

Proprietary Part

No

Hazmat

No
Buy now from
Boeing Distribution Services
This product is no longer available.
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.