PS Magazine - TB 43-PS-674
PS, The Preventative Maintenance Monthly
ISSUE 674
JANUARY 2009
22
PS 674
JAN 09
23
PS 674
JAN 09
P
ages 20-21 in PS 661 (Dec 07) told you about the new sling swivel adapters for the
M249 machine gun that don’t crack the upper receiver hole for the snap hooks.
Well, since then there have been some corrections and changes.
First, the corrections: The NSNs for the front and rear sling mounting kits were
reversed. The front kit comes with NSN 1005-01-529-8406 and rear kit comes with
1005-01-529-8408. The quick-release swivel still comes with NSN 1005-01-529-9309
and you need two of them.
The procedures for installing the front and rear mounting sling assemblies and
attaching the quick-release swivel to the stud lugs remain the same.
If you don’t have a copy of PS 661, you can view it online:
M240: G69
M240B: BB2
M240C: L04
M240D: BC2
M240E1: AG8
M240G: BC6
M240H: BN4
M240N: BJ8
1.
Place the lug (1) into the thick spacer (2).
2.
Use the spacer (3), along with the thick spacer (2),
to replace a missing
grommet.
3.
Place and hold the stud (4), lip end frst, in the inside
oF the receiver and into the spacer (3). The spacer can
be on either the inside or outside oF the receiver.
4.
Add one drop oF Locktite, NSN 8030-01-499-3589, to
the threads oF the lug (1). Screw the lug with spacer
(3) into the stud (4) and snug down the lug.
UOC
Makes All
the Difference
UOC
Makes All
the Difference
M249
Machine
Gun…
Sling
Swivel
Adapters
Part II
oops,
they’ve changed
the procedure for your
sling swivel adapters.
better
make note
of this.
yeah,
we
don’t want
any mistakes.
now the change:
the procedure for
installing the sling
when the receiver is
missing the grommet
assembly has been
revised…
so when you’re looking
up replacement parts
in tm 9-1005-313-23&p,
check the part’s uoc
to make sure it’s for
your
weapon.
here
are the
m240
uocs…
uoc (usable on code)
makes all the difference
when you order parts
for your m240 machine
guns, armorers.
if you ignore the uoc, you
can end up ordering a
part for your m240h that
works only on the M240b.
besides causing
firing problems, the
wrong part can also
damage the weapon.
hey, that’s
an m240
barrel…
and I’m an
m240B!
you
didn’t
check
the uoc,
did you?
Grommet
3
4
1
2
get me
the
right
barrel!!
M240
Machine
Gun…
674.22-23.indd
1-2
12/1/08
4:36:09 PM
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