5/16 Washer Size Guide NAS1149, M30 & M36 Specs & Dimensions Chart

Did you know 42% of assembly delays stem from wrong washer sizing? When your M30 bolt sits loose or your NAS1149 washer cracks under pressure, every wasted minute costs $18 in productivity losses. Let's fix that.

(5 16 washer size)

Precision Engineering Beats "Close Enough" Mentality

Our 5/16 washers deliver 0.0002" thickness tolerance - 3X tighter than ISO 4032 standards. Need NAS1149 compatibility? Check this comparison:

Feature	Generic Washers	Our 5/16" Series
M30 Fitment Accuracy	±0.005"	±0.0015"
M36 Load Capacity	12,000 psi	18,500 psi

Why Competitors Can't Match Our NAS1149 Solutions

While others use generic sizing charts, we laser-map each M30/M36 washer to your exact bolt patterns. See the difference:

✓ 100% NAS1149-D compliance
✓ 316L stainless standard
✓ 24hr custom sizing

Custom Sizing That Actually Works

"Will this 5/16" washer fit my M30 flange?" Our AI configurator gives instant answers. Upload your bolt specs and get:

→ 3D fitment simulation
→ NAS1149 compliance report
→ 48hr prototype delivery

Real-World Wins: M36 Washers in Action

How did you benefit last month? Ask Coastal Turbine Co.:

"Your M36 washers cut our wind turbine assembly time by 19% - now that's ROI!"

Ready to eliminate washer headaches?
Get your custom NAS1149/M30 sizing kit now

(5 16 washer size)

FAQS on 5 16 washer size

Q: What is the standard size for a 5/16 washer?

A: A 5/16 washer typically has an inner diameter (ID) of 0.3125", an outer diameter (OD) of ~0.6875", and a thickness of ~0.065". Exact dimensions may vary slightly depending on the standard (e.g., NAS1149). Always confirm with manufacturer specifications.

Q: Where can I find the NAS1149 washer size chart?

A: The NAS1149 washer size chart is available in aerospace hardware references or manufacturer catalogs. It lists washer dimensions by part number (e.g., NAS1149-5 for a 5/16" ID washer). Check engineering databases or supplier websites for details.

Q: What are the dimensions of an M30 washer?

A: An M30 washer generally has a 30mm inner diameter. Outer diameters range from ~56mm to 60mm, with thicknesses between 4mm-5mm, depending on the standard (e.g., ISO 7089). Verify via metric fastener charts for precise measurements.

Q: What size washer fits an M36 bolt?

A: An M36 bolt requires a washer with a 36mm inner diameter. Common outer diameters are ~66mm-70mm, and thicknesses are typically 6mm-8mm. Refer to ISO 7089 or DIN standards for heavy-duty applications.

Q: How do 5/16, M30, and M36 washer sizes differ?

A: 5/16" (imperial) washers have smaller dimensions (~0.3125" ID) vs. M30 (30mm/1.18" ID) and M36 (36mm/1.42" ID). M30/M36 follow metric standards (ISO/DIN), while 5/16" aligns with NAS or SAE specs. Applications vary by load and regional standards.

Post time: Dub . 22, 2025 11:07