ZZ-T-391E
June 23, 1982
SUPERSEDING
Fed.
Spec.
ZZ-T-391D
December 11, 1970
TIRES,
SOLID
RUBBER, AND WHELLS,
SOLID
RUBBER
TIKE
(Industrial)
This Federal Specification was approved
by the General
Services Administration for the use of
all agencies.
SCOPE
AND
CLASSIFICATION
1.
This
specification
covers
commercial
industrial
tires,
of
both
solid
and
1.1
Scope.
industrial
forklift
construction, w i t h their accessories, a p p l i c a b l e
to
cushion
elastomer
trailers, s i m i l a r materials handling equipments and
spe-
tractors, w a r e h o u s e
tow
trucks,
cial
low
speed
vehicles.
compound
codes,
T i r e s shall be of
the
following
types,
styles,
Classification.
1.2
special
design,
and
construction.
sizes,
The tire and wheel, band, or rim
assemblies
shall
be
of
the
1.2.1 T y p e s
and
Styles.
following types and styles
as specified (see 6.2 and 6.3):
Cured
on
(wheel
assembly)
Type
I
Standard
solid,
smooth
tread.
Style
1
solid, n o n d i r e c t i o n a l
traction
Standard
Style
2
(nonskid)
tread.
Cushion
solid,
smooth
tread.
Style
4
Cushion
solid, n o n d i r e c t i o n a l
traction
Style
5
(nonskid)
tread.
Pressed
on
(base
band
assembly)
Type
II
Style
1
Standard
solid,
smooth
tread.
Standard
solid, n o n d i r e c t i o n a l
Style
2
traction
(nonskid)
tread.
Style
3
Standard
solid,
rib
(grooved]
tread.
Cushion
solid,
smooth
tread.
Style
4
Style
5
Cushion
solid, n o n d i r e c t i o n a l
traction
(nonskid)
tread.
Style
6
C u s h i o n solid, rib
(grooved)
tread.
Pressed
on
hi-load
(base
band
assembly)
(see
3-3.1.)
Style
1
Standard
solid,
smooth
tread.
solid, n o n d i r e c t i o n a l
traction
Standard
Style
2
(nonskid)
tread.
Style
3
Standard
solid, rib
(grooved)
tread.
Style
4
Cushion
solid,
smooth
tread.
C u s h i o n solid, n o n d i r e c t i o n a l
Style
5
tractior i
(nonskid)
tread.
Style
6
C u s h i o n solid, rib
(grooved)
tread.
Cushion,
hollow,
lug
base
Type
IV
Industrial
solid-tire-on-pneumatic-rim
TYPE
V
Style
1
Standard
solid,
smooth
tread.
Style
2
Standard
solid,
nondirectional
traction
(nonskid]
tread.
Style
3
Standard
solid,
rib (grooved)
tread.
FSC
2630
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