SB 742-1
Classification
Application
Inspection
Inspection
Method
Description
1. Critical: none defined
2. Major:
a. Excessive lateral movement of
Visual/Manual/Gage
projectile
b. Primer or igniter above flush
Visual/Gage
c. Primer staking missing
Visual
d. Windshield or windshield tip bent
Visual
or damaged
e. Windshield loose (lateral or
Manual
longitudinal looseness only)
f. Bourrelet cracked or loose
Visual
g. Sabot cracked
Visual
h. Missing parts (e.g., bourrelet,
Visual
obturator, windshield tip, bourrelet
screws).
i. Hose clamp not removed from
Visual
around sabot (reference TM 9-2350-
series or dwg 9296707)
j. Obturating band damaged (i.e.,
Visual
cracked, broken, or gouged)
k. Failure of cartridge to gage
Gage
3. Minor:
a. Windshield cushion missing
Visual
b. Evidence of poor workmanship
Visual
Description
Inspection
NSN
Application
Gage, ring
Projectile
IRI, RI, PI, UBLI
Gage, profile and alignment
Complete cartridge
5220-00-231-7775
IRI
Note 1. Ring gaging required only if round fails profile and alignment gaging.
Note 2. Profile and alignment gaging required only if not accomplished during IRI, or if round is visibly damaged.
(Profile andalignment gaging is required only one time during life cycle of lot.)
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