NAS1351 #0-80 self-locking screws – lot of 32

Product Description

Precision Aerospace-Grade Socket Head Cap Screws (Lot of 32) – NAS1351C00LL3, PCTFE Coated

This is a factory-sealed lot of 32 ultra-precision aerospace fasteners, part number NAS1351C00LL3, sourced directly from a U.S. Defense Laboratory. These #0-80 UNF x 0.188″ socket head cap screws are manufactured to rigorous aerospace standards (NAS1351) and feature a specialized PCTFE (polychlorotrifluoroethylene) coating for dry lubrication, anti-galling, ultra-low outgassing, and cryogenic stability. With integrated self-locking threads and Level 1 certification, they are ideal for critical assemblies in optics, vacuum, cryogenics, and space applications.

Key Specifications:

• Part Number: NAS1351C00LL3 (self-locking “LL” variant per NAS1283 Type L)

• Description: SCREW, SHCS, SLFLKG, 0-80UNF x .188, CRES

• Quantity: 32 pieces (original sealed bag)

• Material: Corrosion-resistant steel (CRES / 300-series stainless)

• Thread: #0-80 UNF × 0.188″ length (~3/16″)

• Head: Socket head cap (Allen drive)

• Locking Feature: Self-locking – vibration-resistant prevailing torque

• Coating: PCTFE (Kel-F) – dry-film lubricant, low outgassing, cryogenic compatible (to ~ -240°C)

• Certification: “LEVEL 1 CERTIFIED” – contamination-controlled, “DO NOT INSPECT” sealed

• Condition: New, unused surplus – factory-sealed bag

Why This Lot Is Exceptional:

• Defense Laboratory Provenance: Directly from a U.S. defense R&D environment, ensuring traceability and quality.

• Rare Coating & Locking Combo: PCTFE coating combined with self-locking threads is a high-performance combination beyond standard NAS fasteners.

• Certified Cleanliness: Level 1 certification and sealed bag make these suitable for sensitive optical, vacuum, or space applications.

Applications:

• Precision Optics & Mounting: Aligning lenses, mirrors, or sensors in aerospace and research instruments.

• Vacuum & Cryogenic Systems: Low-outgassing, thermally stable fasteners for chambers, feedthroughs, and probes.

• Micro-Assembly & Miniaturized Devices: Electronics, micro-optics, or medical device assembly requiring tiny, reliable screws.

• Space & Satellite Hardware: Where vibration resistance, material stability, and contamination control are critical.

• High-Reliability Prototyping: For R&D labs, universities, or makers needing aerospace-grade fasteners.