Section B—Couplers and Freight Car Draft Components (page  of )

Doc Affected

Date

CL No.

Title

M-921B

12/17/1996

C-8685

Implementation of AAR Specification M-921B-97—End-of-Car Cush­ioning Devices for Freight Cars

M-921-E

5/12/2000

C-9133

Implementation of Specification M-921-E, Active Draft End-of-Car Cushioning Device for Freight Cars

Book

6/16/2000

C-9172

Availability of 2000 Revised Section B of the Manual of Standards and Recommended Practices

Book

7/1/2003

C-9673

Availability of Revised Section B of the Manual of Standards and Recommended Practices: Coupler and Freight Car Draft Compo­nents

M-921G

7/1/2003

C-9675

Implementation of New Specification M-921G-03, Facility Inspection Requirements for Manufacturers of New and Reconditioned Cush­ioning Devices for Freight Service

M-921-H

4/28/2004

C-9824

Implementation of New Specification for Unit Condition Indicators used on End-of-Car Cushion Units

M-921F

6/25/2004

C-9871

Implementation of Active Draft Cushioning Unit Specification M-921F

M-901B

8/3/2004

C-9899

Implementation of Revisions to M-901B, Standard for Reconditioning Draft Gears

M-201

2/7/2005

C-10053

Implementation of Revisions to Steel Foundry and Truck Castings Specifications: M-201, M-202 and M-203

M-201

3/22/2005

C-10062

Implementation of Revisions to Steel Foundry and Truck Castings Specifications: M-201, M-202 and M-203

M-901C

M-901H

10/23/2006

C-10375

Proposed Archival of All Standards and Specifications Related to 36-in. Draft Gear

M-901G

M-901K

4/13/2007

C-10484

Implementation of Administrative Changes in MSRP Section B, M-901G and M-901K Draft Gear Standards

M-901

4/13/2007

C-10485

Implementation of Revised MSRP Section B, M-901E Draft Gears with a Minimum Capacity of 36,000 ft-lb at a Reaction of 500,000 lb

Book

12/06/2007

C-10648

Implementation of Revised AAR MSRP Section B: Couplers and Freight Car Draft Components

M-119

11/14/2008

C-10869

Implementation—New Specification M-119, 7/8 in. Pin for F-Type Cushion Yoke, MSRP Section B: Couplers and Freight Car Draft Components

S-119

03/10/2009

C-10954

Implementation of Editorial Revision to MSRP Section B, Couplers and Freight Car Draft Components, Standard S-119, Draft Gear Fol­lowers

M-119

07/07/2009

C-11054

Revised Implementation—New Specification M-119, 7/8 in. Pin for F-Type Cushion Yoke with Trainline Support Bracket, MSRP Section B: Couplers and Freight Car Draft Components

S-270

09/29/2009

C-11100

Implementation, New Specification S-270 Wear Plate, Used in Cush­ion Unit and Draft Systems That Employ the Y-47 Pin for an F Shank

S-100

04/14/2010

C-11204

Implementation—Revision to AAR MSRP Section B, Couplers and Freight Car Draft Components, Standard S-100, “Bushings, Seam­less Steel Tube—Coupler Shanks and Yokes”

M-901B

04/14/2010

C-11205

Implementation—Revision to AAR MSRP Section B, Couplers and Freight Car Draft Components, Specification M-901B, “Draft Gear, Secondhand and Reconditioned”

S-120,

2/16/2011

C-11381

Implementation of Revisions to AAR Manual of Standards and Rec­ommended Practices Section B, Couplers and Freight Car Draft Components, S-120, Draft Key Retainers, S-121, Draft Key, Retainer, and Washer; and S-122, Draft Key Retainer.

S-121,

S-122

S-182

S-183

S-184

4/13/2011

C-11415

Implementation—AAR MSRP Section B, Couplers and Freight Car Draft Components, New Standards S-182 Pocket Tolerances—EOC-8; S-183 Pocket Tolerances—EOC-9; and S-184 Pocket Toler­ances—EOC-10

RP-101

10/25/2011

C-11546

Implementation: Revision to MSRP Section B, Couplers and Freight Car Draft Components, Recommended Practice RP-101 Draft Gear Inspection

M-901B

2/4/2012

C-11612

Implementation of Revisions to MSRP Section B, Couplers and Freight Car Draft Components, Specification M-901B, Draft Gear, Secondhand and Reconditioned

S-119

5/25/2012

C-11687

Revisions to MSRP Section S, Casting Details and Section B, Cou­plers and Freight Car Draft Components, M-211 and S-119 Draft Gear Followers

M-921C

6/26/2012

C-11719

Implementation of Revisions to MSRP Section B, Couplers and Freight Car Draft Components, Specification M-921C, Cushioning Devices, Reconditioned Approved for Freight Service

M-921B

M-921D

M-921E

M-921F

10/11/2012

C-11788

Implementation of Revisions to MSRP Section B, Couplers and Freight Car Draft Components, Cushion Unit Specifications M-921B, M-921D, M-921E and M-921F

Book

11/01/2012

C-11797

Implementation of Revised AAR Manual of Standards and Recom­mended Practices Section B, Freight Car Draft Components

M-921C

1/16/2013

C-11875

Implementation of Revised AAR MSRP Section B,Freight Car Draft Components, Specification M-921C “Cushioning Devices, Recondi­tioned, Approved for Freight Service"

M-901B

2/21/2013

C-11898

Implementation of Editorial Revisions to MSRP Section B, Couplers and Freight Car Draft Components, Specification M-901B, Draft Gear, Secondhand and Reconditioned

M-901B

M-901E

M-901G

M-901K

3/13/2015

C-12339

Implementation of Editorial Revisions to MSRP Section B, Freight Car Draft Components, Specifications M-901B, M-901E, M-901G, and M-901K (Specifications for Draft Gears, marking sections)

S-121

6/22/2015

C-12404

Implementation of editorial changes to AAR MSRP Section B, Freight Car Draft Components, Standard S-121, Draft Key

S-121

9/12/2017

C-12954

Implementation of Revisions to MSRP Section B, Freight Car Draft Components, Standard S-121, Draft Key, Regarding Manufacturing Dimensional Tolerances and Markings

M-118

1/26/2018

C-13063

Implementation of Revisions to MSRP Section B, Freight Car Draft Components, Specification M-118, Regarding Coupler and Knuckle Pin Mechanical Properties

M-921A

M-921C

M-921H

3/13/2018

C-13081

Implementation of Editorial Revisions to MSRP Section B, Freight Car Draft Components, Unit Condition Indicator requirements for Cushioning Devices, M-921A Sliding Sill, M-921C Reconditioned, M-921H UCI