SB 742-1
d. HERA, M548 rocket motor spike may be contaminated
a. QASAS will inspect and classify items according to this with
a
yellow
crystalline
substance
composed
of
2-Nitrodiphenylamine. Double base cast propellants used in
supply bulletin and table H-2.
rocket motor also have a history of exuding a NG plasticizer
b. QASAS will inspect and torque test assembled fuzes as that tests have proven to be quite insensitive. Both may give
required by Appendix X. Remove fuze from projectile only if appearance of corrosion but presence of either substance is
torque test is required.
not a defect. Annotate occurrence on Depot Surveillance
c. Cartridge, 105mm, M60 series WP will be packaged with Record Cards for information purposes.
projectile base down. When packaged or unitized in other
e. Some HC smoke rounds have been reported as having
orientations and subjected to high temperatures (111+ degrees
a white powdery residue in the fuze well and under the fuze
F) filler will melt, change position (hence center of gravity), and
closing plug. This substance has been laboratory tested and
upon solidification cause poor ballistics with resultant short
determined to be aluminum and zinc chlorides. It is not an
rounds.
explosive hazard and is considered to be an incidental defect.
Removal of the white residue is not necessary prior to fuzing
and use of the cartridge. If this residue contacts the skin,
wash skin thoroughly.
Equipment Identification List
Description
Drawing
NSN
Application
Gage, Profile & Alignment
9280415
All
7258482
All
Gage, Concentricity (deep
7304529
All unfuzed M1,
cavity)
M760and M913
6024125
All unfuzed M84A1,
Gage, Plug, Thread and
Concentricity
M314 series, M60 series
Profile and Alignment Gages are interchangeable
NOTE: Special torque test equipment utilized to check fuze setting torque is specified in SASIP 742-1390-94-950
Item Defects and Method of Inspection
Classification
Application
Inspection
Inspection
Method
Description
1. Critical:
a. Primer above flush
All
Straightedge
b. Loose primer
All
Manual
c. Cracks in projectile
All
Visual
d. Distorted or out of round
All
Visual/gage
projectile
e. Exudation of filler around
All HE
Visual
fuze well liner.
f. Rocket-Off cap missing or
M548, M913
Visual
pierced
g. Incorrect number of
All with adjustable
Visual
increments
propelling charge charges
h. Supplementary charge
M1, M760
Visual
M548, M913
missing
i. Fuze well liner missing.
M1, M760
Visual
M548, M913
j.
M84 series
Visual
Leaking black powder
M314 series
M395 blank
k. Leaking WP
M60 series
Visual
l. Projectile, HE; with damaged
M1, M760
Visual
ogive/nose
m. Flash reducer missing
M913
Visual
insecure
2. Major:
a. Damaged rotating band
All
Visual
b. Fuze well threads damaged.
All
Visual
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