PS Magazine - TB 43-PS-560
PS, The Preventative Maintenance Monthly
ISSUE 560
JULY 1999
M240-Series Machine Guns . . .
NSNs Are Here
M
any of the parts for the M240 machine gun that you previously had to order
by part number now
have NSNs. The NSNs
are in the latest
revision to TM 9-
1005-313-10. If you
haven’t received
the revision, jot
down these NSNs
in your -10:
M2 Machine Gun . . .
Small Arms . . .
To tell if an unlined barrel is bad,
check its bullet strike pattern on a
target. If the pattern is erratic, the bar-
rel should be turned in. Also turn in
the barrel if you see tracer bullets go-
ing downrange erratically.
To order a lined barrel, NSN 1005-
00-726-6131, send a funded requisi-
tion to:
TACOM-ACALA
ATTN: AMSTA-AC-NCDC
Rock Island, IL
61299
If you have questions about ordering
lined barrels, call Pam Lund at DSN
793-7365, (309) 782-7365, or Tim
Hildebrant at DSN 793-6463.
armorers, you no longer
have to depend on an
outdated
supply catalog to inventory
your
small arms tool kit
,
nsn 5180-00-357-7770.
okay! you
got me
! i'm
unlined!
* Replacement NSN
Page #
Item description
NSN 1005-01-
B-2
Ammunition adapter
431-8324
B-2
Sling with hook assembly
439-6899
B-4
Barrel assembly (Item 1B)
433-7220
B-8
Spare barrel case
442-8626
B-10
Flex assembly mount
411-6340*
C-1
M24 blank firing attachment
431-7919
C-4
M122A1 mount
433-1617
Check here for part number
A revised SC 5180-95-A07 for the
tool kit was included in the latest edi-
tion (Sep 98) of EM 0074, the CD
ROM containing most of the Army’s
SCs.
Your supply shop should have a
copy of EM 0074. If it does, have
them print you a copy of the 30-page
tool kit SC.
If they don’t have EM 0074, they
should immediately put it on their
pubs account with IDN 212093 and
order a current copy with PIN
075815000.
PS 560
43
JUL 99
PS 560
42
JUL 99
ven though unlined M2 machine gun
barrels haven’t been available for years,
there are still some in the field. And
they’re still causing problems.
Barrels without the special metal
lining wear out 80 percent faster than
lined barrels. They also fire XM903 and
XM962 saboted light armor penetrator
(SLAP) ammo very inaccurately.
It’s OK to use unlined barrels for train-
ing with .50-cal ammo and the M19
blank firing attachment. But mark the
unlined barrels with a 1-in white paint
strip around the barrel near the carrying
handle notches so they’ll be easily iden-
tifiable and used only for training.
The easiest way to tell if a barrel is
unlined is to check the part number on
the outside of the barrel. A lined barrel
has a part number of 7266131. Any other
number means the barrel is unlined.
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