If you require the official, certified PDF document for legal or manufacturing verification, it can be purchased from the aerospace standards aggregators:
Since I cannot provide a downloadable PDF file directly, I have provided the content of the standard below, formatted as a technical paper/datasheet. This covers the most common specification: nas swage standoffs
: Male-female standoffs designed for stacking and secure mounting. If you require the official, certified PDF document
Use NAS standoffs for avionics, military, medical, or high-vibration environments. Use commercial for consumer electronics or prototype builds. Use commercial for consumer electronics or prototype builds
NAS swage standoffs are high-precision, permanent fasteners designed for aerospace and defense applications. These components are used to create fixed distances between stacked printed circuit boards (PCBs) or panels, preventing components from touching while ensuring stability under vibration. Unlike standard standoffs, swage versions are permanently attached to a board through mechanical deformation, which prevents them from being lost or dropped during later assembly stages. Common NAS Standards
(Note: Lengths increase in increments. Full charts available in official NAS documentation.)