SB 742-1
c.
M1, M760
Gage
Fuze well threads fail to gage
M548, M913
d.
All fuzed cartridges
Visual/Drawing
Fuze not staked or
improperly staked
e. Fuze fails disassembly torque
All fuzed
Torque Test
test
f. Fuze fails setting Torque Test
All with MTSQ. (except
torque test
M577 series)
g.
All
Visual/Gage
Cartridge case severely
dented
h. O-ring or fuze sealant
M444 ICM
Visual
missing.
i. Weight zones missing, mixed,
All
Visual
incorrect, or unidentifiable.
Prick punch marks in the center
of each square are not required.
j. Propelling charge cut or torn.
All
Visual
k. Deteriorated propellant bag.
All
Visual
l. Incorrect sequence of
All with adjustable
Visual
increment charges
propelling charge
m. Foil side of bag, charge 5,
All w/M67 charges with
Visual
lead foil.
not facing primer
n. Lead carbonate or lead foil
All
Visual
missing
o. Ctg case/proj fail to chamber
All
Gage
gage.
p. Hole through closing cup
Blank, M395
Visual
q. Closure cup loose
Blank, M395
Manual
r. Crack in closing cup
Blank, M395
Visual
s. Tracer plug or disks damaged
HEP-T, M327
Visual
t. Excessive gap between rocket
HERA, M548 M913
Gage
motor and warhead
3. Minor:
a. Closing cup seal damaged.
Blank, M395
Visual
b. Loose fuze well liners
HE;M1, M760, M548, M913
Manual
c. Suppl charge pad missing
M1, M760 M548, M913
Visual
d. Cord between increments
All with adjustable
Visual
increments
broken
e. Fuze well spacer missing
All unfuzed HE and HERA
Visual
4. Incidental:
a. White residue in fuze well or
All HC smoke only
Visual
under closing plug
d. HE projectiles known to have been dropped on ogive or
evidencing damage to this area shall be classified
a. Remove propelling charge from cartridge case. Apply
unserviceable. Report this ammunition to, the office in para 1-
light side-to-side pressure to primer end with fingers. Primer
5d(1) by message, identifying lot number, quantity, and DODIC
is only press fit into cartridge case so avoid excess force.
and include circumstances of incident causing damage. Retain
Slight movement of primer from side to side is not a defect
cartridge, pending response to report.
unless movement results in primer head above flush with base
of cartridge case.
e. Ascertain reason for gaging failure, i.e. malformed
threads, eccentric fuze well, cocked or shallow fuze well, etc.
b. Sweep a stiff non-sparking ruler with a true edge of at
Projectiles with damaged threads that pass gaging are not
least 4 inches in length across cartridge base. If resistance is
defective. A concentricity gage (deep cavity) is not available for
noted, cartridge case has a high primer.
M548 HERA cartridges. Utilize an inert M514A1 proximity
fuze to assure acceptable concentricity and depth of fuze well.
c. Cartridges requiring supplementary charges may
The M514A1 proximity fuze is available from addressee in
detonate in-bore if fired without charge.
Supplementary
charge prevents booster from striking base of fuze liner, should
it separate from fuze.
f. Projectile should fit freely into mouth of cartridge case.
Inspector will report cartridges that fail gaging IAW para 2-7 of
this SB.
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