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SAE AS21921D

Name: SAE AS21921D PDF | Request Standard
SKU: 904a1c061dae

NUT, SLEEVE COUPLING, FLARELESS

Standard by SAE International, 2025-11-18

Available Formats:

SAE AS21921D.PDFSecure PDF
SAE AS21921D.PDFOnline Access

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Language: English
License Type: Single User
Updates: Not Included

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Language: English
License Type: Enterprise / Multi User
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About This Item

GRAPHICS REDRAWN FOR IMPROVED CLARITY. FIRST VIEW SHOWING EXTERNAL DIMENSIONS WHILE SECOND VIEW IS SHOWING INTERNAL DIMENSIONS. ADDITIONAL VIEWS ADDED TO CLARIFY DIM K CONFIGURATION FOR LARGER SIZES. SIZE CALLOUT FOR SMALL V-GROOVE DEPTH CORRECTED. SAFETY WIRE HOLE OPTION ADDED. HEX CHAMFER FORMAT CALLOUT CHANGED TO REFLECT CURRENT CALLOUT. DIMENSION J ADDED TO TABLE 1B. CANCELLATION NOTE FOR MATERIAL CODE “-” AND “D” REMOVED. ALLOY STEEL MATERIAL 4130 REACTIVATED TO ALIGN WITH OTHER AS219XX STDS, ALLOWING THIS MATERIAL TO BE USED FOR DOD PROGRAMS. EDITORIAL CHANGES TO PART NUMBER NOTE /6/. PROCUREMENT SPECIFICATION NOTE UPDATED. INVENTORIED DISPOSITION NOTE 17 AND SAFETY WIRE NOTE /18/ ADDED. TABLE 2 CANCELLATION INFORMATION UPDATED. EXPLANATORY NOTE /19/ UPDATED.

SKU: 904a1c061dae

Publication Date: 2025-11-18

Standard Status: latest

Publisher: SAE International

Document Type: Aerospace Standard

Subject: Nuts, , , , , , , ,

Official SAE: Doi link

This Version: AS21921D (2025-11-18)
Previous Version: AS21921C (2010-11-15)
Previous Version: AS21921B (2008-06-09)
Previous Version: AS21921A (2007-07-18)
Previous Version: AS21921 (1998-08-01)

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