INCH-POUND
MIL-DTL-29229B(YD)
14 March 1997
SUPERSEDING
MIL-S-29229A(YD)
12 February 1990
DETAIL SPECIFICATION
SWITCHES AND FROGS, TRACK, FABRICATED,
FOR PORTAL CRANES
This specification is approved for use by the Naval Facilities Engineering
Command, Department of the Navy, and is available for use by all
Departments and Agencies of the Department of Defense.
1. SCOPE
1.1 Scope. This document covers special fabricated track switches and frogs for portal crane
tracks.
1.2 Classification. Portal crane track fittings will be of the following types, classes, and styles as
specified (see 6.2):
Type I - Double tongue track switches.
Class A - Curve to right.
Class B - Curve to left.
Type II - Rigid frogs.
Class C - Double/double flangeway, for intersection of 135CR with 135CR.
Class D - Double/single flangeway.
Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any data
which may improve this document should be sent to: Commanding Officer (Code 1581), Naval
Construction Battalion Center, 1000 23rd Avenue, Port Hueneme, CA 93043-4301, by using the
Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this
document or by letter.
AMSC N/A
FSC 2250
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business