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MIL-T-20705A
24 April 1970
SUPERSEDING
MIL-T-20705
30 December 1957
MILITARY SPECIFICATION
TEETH, SCARIFIER, BACK-RIP
This specification is mandatory for use by all Departments and
Agencies of the Department of Defense.
1. SCOPE
1.1 Scope. This specification covers teeth for back-rip
scarifiers for tractors equipped with dozer blades which permit
penetrating and ripping the ground when the tractor is traveling in
reverse gear only. The teeth are suitable for operation in all types
of terrain where rugged and high-strength parts are required.
1.2 Classification. Tooth sizes correspond to the size of shank
on which they are mounted, as shown in table I. Teeth shall be
furnished in the sizes specified:
Table I. Tooth sizes
Shank size
Tractor drawbar pull
Shank thickness
Tooth size
(Pounds)
(Inches)
6,300 to 21,000
1, 2, 3
1-1/2
1
21,000 to 30,000
4
2
4
31,000 to 50,000
5 and 6
3
5
2. APPLICABLE DOCUMENTS
2.1 The following documents of the issue in effect on date of
invitation for bids or request for proposal form a part of this
specification to the extent specified herein:
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