SB 742-1
l. Propelling charge container lid closure torque values are
(2) For M55 SRCs assembled with pre-packaged
Teflon seals, a single Teflon seal should be used repeatedly provided below:
until a test failure is encountered. Upon failure, the test seal
(1) M10A4 225-350 inch-pounds
will be destroyed and discarded, and a new test seal will be
used. Extra Teflon seals, NSN 5330-01-302-0054, should be
(2) M13A2 200-325 inch-pounds
requisitioned from the NICP.
(3) M14A2 175-300 inch-pounds
(3) The AGM-12C BullPup Container will be leak
(4) M16A2 200-325 inch-pounds
tested using the APE 1052 modified with a gauge indicating a
pressure range of 1-5 psi. The test will be conducted at 3 psi,
(5) M16A3 200-325 inch-pounds
with no pressure loss noted over a 3-minute period.
(6) M18A1 225-350 inch-pounds
(4) Secondary Steel Containers (SSC) do not require a
leak test unless directed by the NICP/NMP.
(7) M18A2 225-350 inch-pounds
(5) All overpack containers will be visually inspected
(8) M460A2 225-350 inch-pounds
immediately prior to use, applying applicable portions of
Test plugs for all propelling charge container
lids are to be seated with a torque of 2.5 foot-
(6) Care and handling of SRCs during Inspection. The
pounds (at least 30 inch-pounds) minimum.
following special precautions are to be observed during
inspection, preventive maintenance, and preparation-for-use
operations involving SRCs. If container-specific procedures are requirements follows:
The bolts/nuts shall be torqued
in conflict with guidelines published here, container-specific diametrically opposed from each other to 30 foot-pounds (plus
procedures will take precedence.
or minus 2 foot-pounds). In addition, bolt threads must be
fully engaged to nut. A minimum of two threads must extend
(a) The condition of the flange sealing surface
from the nut after torque.
and cover is critical to container performance. Care must be
taken to prevent damage to these surfaces during inspection
n. M55 Single Round Container (SRC), 8140-00-286-0482:
and testing. Foreign substances of any kind, to include skin torque inspection plug to 25 ft-lbs (300 inch-lbs). For
oil, may interfere with obtaining a good seal. Particular care container cover, cross torque bolts in 20 ft-lbs (240 inch-lbs)
must be taken with unpainted flange or cover surfaces.
increments to 60 ft-lbs (720 inch-lbs).
(b) Unpainted flanges and covers should be
o. SSCs used to overpack M23 Mines: The bolts will be
thoroughly cleaned with a specified solvent and liberally coated torqued in an anti-clockwise pattern starting at the top right
with a specified rust preventive coating after inspection and/or corner to 300 in-lbs. Once all the bolts have been torqued, the
testing. Authorized solvents and rust preventive are listed process will be repeated
below. Lubrication of the seal is not required.
p. AGM-12C BullPup: Torque bolts to 150 in-lbs.
(c) Authorized solvents are Wipe Solvent DS-104
q. SRC lid closure torque values are located within each
or Wipe Solvent DS-108. The previously specified solvent,
container's LOI. For the 9" x 41", 7" x 27" and 12" x 56" SRC's,
Trichlorotriflouroethane (Freon 113) is an Ozone Depleting
Further use of Freon 113 is banned. operator is required to cross torque bolts in 20 ft-lbs
Substance (ODS).
Pertinent packaging and ordering information is provided increments to 60 ft-lbs.
below.
r. Torque values are the same for containers whether the
1 Wipe Solvent, DS-104: NSN 7930-01-367- overpack is being used in containerization operations or during
1000, 4 ea x 1 gallon container, NSN 7930-01-367-1001, 24 ea periodic serviceability inspections.
x 16 oz squeeze tube
2 Wipe Solvent, DS-108: NSN 7930-01-367-
x 16 oz squeeze tube.
(d) The manufacturer's recommended non-
petroleum based rust preventative is Rhodorsil Fluid 47 V 50
(Polydimethyl-Siloxane, from Rhodia Silicones, Prospect Plains
Road, Cranbury, NJ 08512-7500. Rust preventative installed
by the manufacturer (Rhodorsil Fluid 47 V 50 (Polydimethyl-
Siloxane) should not be removed from machined mating
surfaces unless, based upon the judgment of an inspector, it is
necessary to do so to recognize and classify a defect(s).
Acceptable substitutes are Grease, MIL-G-14931, Grease,
Silicone, MIL-G-46886; or Dow Corning Vacuum Grease,
2021846-0888. No NSN or military specification has been
assigned to Dow Corning Vacuum Grease. It may be procured
through a regional Dow-Corning sales representative.
7-9