S-96659A127 0.14" ID x 0.312" OD SAE Washers

SAE Washers

1251FA00279 SAE Washers
1251FA00279 SAE Washers

Image may differ from product. See technical specification for details.

Part No.
Part No. 1251FA00279
Equivalent to mcmaster :
96659A127

Basic Information

System of Measurement Inch
Washer Type Flat
Washer Designation SAE

Dimension Parameters

ID 0.14"
OD 0.312"
Thickness 0.025-0.040"

Material & Strength Parameters

Material Black-Oxide 18-8 Stainless Steel
Hardness Not Rated

Installation & Application Parameters

For Screw Size No. 5

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (06/14/2023, 235 SVHC) Compliant
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Superior corrosion resistance with Black-Oxide 18-8 Stainless Steel construction, ideal for humid or chemically aggressive environments.
  • Precise dimensional fit (0.14" ID, 0.312" OD) ensures secure seating and even load distribution for No. 5 screws.
  • Enhanced durability from 18-8 stainless steel, offering long-term reliability without rust or degradation.
  • SAE standard compliance guarantees interchangeability and consistent performance in inch-system assemblies.
  • Broad environmental compliance with RoHS 3 and REACH, making them safe for regulated industries.
  • Versatile thickness range (0.025-0.040") accommodates slight variations while maintaining effective spacing and tension.
  • Reliable surface protection through black-oxide finish, reducing galling and providing a professional appearance.

Professional Applications & Engineering Value

These SAE flat washers are engineered to address common industrial challenges such as fastener loosening, surface damage, and corrosion-induced failure. The Black-Oxide 18-8 Stainless Steel material offers excellent resistance to oxidation and chemicals, making them suitable for outdoor equipment, marine hardware, and food processing machinery where moisture or cleaning agents are present. The precise 0.14" ID and 0.312" OD ensure a snug fit on No. 5 screw applications, distributing clamp load evenly to prevent joint fatigue and extend assembly life. This combination of material strength and dimensional accuracy provides reliable performance in high-vibration or thermal cycling environments, reducing maintenance needs and downtime.

Specification Summary & Compliance

This washer meets SAE standards for inch-system flat washers, with an inner diameter of 0.14", outer diameter of 0.312", and thickness ranging from 0.025" to 0.040". It is manufactured from 18-8 Stainless Steel with a black-oxide finish and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material traceability.

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