SIST EN 2912:2001

SIST EN 2912:2001 is a Slovene adoption of EN 2912:1996 for aerospace flat washers with a large diameter, made in aluminium alloy and finished by anodizing or chromating. It specifies the characteristics of this washer type for aerospace applications and limits use to a maximum operating temperature of 120 °C.

What does SIST EN 2912:2001 specify?

SIST EN 2912:2001 specifies the characteristics of flat washers, large diameter, in aluminium alloy, anodized or chromated. The standard is focused on a single washer family for aerospace applications, so it is mainly a product definition document for design, purchasing, and inspection.

For a buyer or engineer, the key point is that the document sets the accepted washer type by material, surface treatment, and service temperature. That helps teams select the right part for aircraft and other aerospace assemblies where light weight and controlled corrosion protection matter.

What are the key requirements of SIST EN 2912:2001?

SIST EN 2912:2001 covers a narrow, specific hardware item, and the most important points are in its product definition.

• Washer type - The standard applies to flat washers with a large diameter. In practice, this means it is meant for assemblies where a wider bearing area is needed than with a small standard washer.
• Material - The washers are made in aluminium alloy. For users, that means the part is intended for lightweight aerospace construction rather than general-purpose steel washer use.
• Surface condition - The washers are anodized or chromated. This matters because the finish is part of the defined product characteristics and affects corrosion protection and compatibility with aerospace procurement requirements.
• Service temperature - The maximum operating temperature is 120 °C. In practice, designers and buyers should check that the intended installation stays within that temperature limit.
• Application field - The standard is for aerospace applications. That tells users to apply it where aerospace material control, traceability, and fit-for-purpose part selection are expected.
• Characteristic-based specification - The standard specifies the characteristics of the washer rather than describing a general design philosophy. In use, that means drawings, part lists, and incoming inspection should match the defined washer form and finish.
• Identified national adoption - SIST EN 2912:2001 is the Slovene version of EN 2912:1996. For sourcing, this helps procurement teams match the national designation to the European document.

Who uses SIST EN 2912:2001?

SIST EN 2912:2001 is used by aerospace designers, suppliers, and buyers who need a defined flat washer for aerospace assemblies. Quality managers and inspectors use it to check that received parts match the specified washer type, material, finish, and temperature limit.

Manufacturers of aerospace fastener hardware also use it when producing or certifying aluminium alloy washers for supply into aerospace projects. In practice, it supports part selection, supplier specification, and inspection against a common product description.

What changed in SIST EN 2912:2001 from the previous edition?

SIST EN 2912:2001 is identified as identical to EN 2912:1996.

What does the SIST EN 2912:2001 document contain?

SIST EN 2912:2001 contains the standard's front matter, multilingual title information, scope statement, and bibliographic classification details. It identifies the product family, the finish options, the aerospace application field, and the 120 °C maximum operating temperature.

The document is a product standard, so its value lies in giving a shared reference for design and procurement rather than a test method or installation procedure. For users, that means it is mainly a specification to cite on drawings, purchase orders, and quality documents for the washer type it covers.