This opportunity concerns NSN 4320-01-162-6456, a part currently approved for manufacture by Lockheed Martin and two Meggitt entities. The item requires engineering source approval, meaning only qualified sources can produce it, and alternate manufacturers must demonstrate their capability to match or exceed OEM quality. Companies interested in becoming an approved source may apply through the DLA Weapons Support Alternate Offer/Source Approval Request (SAR) program. Prospective sources should submit relevant information to the Contract Specialist for review. No submission timeline, budget, or performance location was specified.