Name: IS 11680 : 2025 - Aerospace - Nuts, Hexagonal, Slotted (Castellated), Normal Height, Normal Across Flats, with MJ Threads, Classification - 600 Mpa (at Ambient Temperature)/120 °C, 600 Mpa (at Ambient Temperature)/235 °C, 900 Mpa (at Ambient Temperature)/425 °C, 1 100 Mpa
Brand: Bureau of Indian Standards

Aerospace - Nuts, Hexagonal, Slotted (Castellated), Normal Height, Normal Across Flats, with MJ Threads, Classification - 600 Mpa (at Ambient Temperature)/120 °C, 600 Mpa (at Ambient Temperature)/235 °C, 900 Mpa (at Ambient Temperature)/425 °C, 1 100 Mpa

Published date

15-10-2025

Publisher

Bureau of Indian Standards

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Committee	TED 14
DocumentType	Standard
PublisherName	Bureau of Indian Standards
Status	Current
Supersedes	BIS IS 11680 : 1986(R2002)

Standards	Relationship
ISO 4147:1997	Identical

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IS 11680 : 2025

Aerospace - Nuts, Hexagonal, Slotted (Castellated), Normal Height, Normal Across Flats, with MJ Threads, Classification - 600 Mpa (at Ambient Temperature)/120 °C, 600 Mpa (at Ambient Temperature)/235 °C, 900 Mpa (at Ambient Temperature)/425 °C, 1 100 Mpa

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