ISO 10096-1997 PDF

Full title and description

ISO 10096:1997 — Aerospace — Nuts, hexagonal, slotted (castellated), reduced height, reduced across flats, with MJ threads; classifications: 450 MPa (at ambient temperature)/425 °C, 600 MPa (at ambient temperature)/235 °C, 600 MPa (at ambient temperature)/315 °C, 600 MPa (at ambient temperature)/650 °C, 900 MPa (at ambient temperature)/235 °C, 900 MPa (at ambient temperature)/730 °C and 1 100 MPa (at ambient temperature)/600 °C — Dimensions. This International Standard specifies dimensional requirements for reduced‑height, reduced‑across‑flats, castellated hexagonal nuts intended for aerospace applications.

Abstract

Specifies the dimensions (profiles, across‑flats, heights, slot/castellation geometry and associated dimensional tolerances) of hexagon slotted (castellated) nuts with MJ threads in a range of strength/temperature classifications. These nuts are intended for use with split pins (cotter pins) in accordance with ISO 1234 and for application in aerospace product standards where reduced height and reduced across‑flats are required.

General information

• Status: Published / confirmed international standard.
• Publication date: September 1997 (Edition 1 — 1997-09).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 49.030.30 (Nuts / fasteners).
• Edition / version: Edition 1 (1997).
• Number of pages: 2 pages (short dimensional standard).

Scope

Defines dimensional characteristics of hexagonal, slotted (castellated) nuts of reduced height and reduced across flats, fitted with MJ threads, for the listed mechanical classifications (tensile strength at ambient temperature paired with maximum service temperature). It covers the dimensional series, slot geometry for split‑pin retention and mating requirements with split pins per ISO 1234. The standard is intended to be used when specifying aerospace fasteners that require castellated locking with split pins.

Key topics and requirements

• Dimensional tables for nut diameter series and associated across‑flats and heights (reduced height, reduced across flats).
• Specification of MJ thread form for mating with aerospace bolts.
• Classification by mechanical strength & maximum service temperature (listed strength/temperature combinations included in title).
• Slot (castellation) geometry and dimensions to accept split pins (compatibility with ISO 1234 split pins).
• Dimensional tolerances and designation notes for procurement and drawing call‑outs.

Typical use and users

Used by aerospace fastener manufacturers, aircraft design and structural engineers, quality and procurement teams specifying or ordering castellated nuts, maintenance/repair organisations and standards committees compiling aerospace product standards. It is referenced where a reduced‑height castellated nut with MJ thread and split‑pin locking is required.

Related standards

Commonly used alongside other aerospace nut standards and fastener product standards such as ISO 4147 (castellated nuts — normal height variants), ISO 9618 (reduced height / other across‑flat variants; later editions replace/augment some nut types) and ISO 1234 (split pins / cotter pins — mating retention elements). National and regional aerospace standards (EN, ASME) for slotted nuts and the broader family of ISO nut standards are also related.

Keywords

aerospace, nut, hexagon, slotted, castellated, MJ thread, reduced height, reduced across flats, dimensions, split pin, cotter pin, ISO 1234, fasteners

FAQ

Q: What is this standard?

A: ISO 10096:1997 is an ISO dimensional standard that specifies the geometry and tolerances for hexagonal castellated (slotted) nuts of reduced height and reduced across flats with MJ threads for aerospace applications.

Q: What does it cover?

A: It covers dimensional series, slot/castellation geometry for split‑pin locking, MJ thread designation and the strength/temperature classifications referenced in the title. It does not specify material grades or heat‑treatment processes beyond classification usage — it is primarily a dimensional specification.

Q: Who typically uses it?

A: Aerospace fastener manufacturers, design engineers, procurement/specification authors, maintenance organisations and standards committees involved in aerospace component definition and procurement.

Q: Is it current or superseded?

A: ISO 10096:1997 remains a published ISO International Standard (1997 edition). However, the family of related ISO standards for hexagonal slotted nuts has been updated in subsequent publications (for example ISO 9618 with later editions covering additional reduced‑height/normal‑across‑flats variants). Users should check whether a later ISO document or a newer edition applies to their specific application.

Q: Is it part of a series?

A: Yes. ISO 10096 is one of several related aerospace standards that define dimensions for hexagonal slotted (castellated) nuts (see ISO 4147, ISO 9618 and other ISO nut standards). These standards together provide dimensional specifications for different nut heights, across‑flats and strength/temperature classifications used in aerospace assemblies.

Q: What are the key keywords?

A: Castellated nut, slotted nut, hexagon nut, MJ thread, reduced height, reduced across flats, aerospace fastener, split pin, ISO 1234.