PS Magazine - TB 43-PS-704
PS, The Preventative Maintenance Monthly
ISSUE 704
JULY 2011
17
PS 704
JUL 11
F
or some things, if you’ve seen one, you’ve seen them all. But that’s not the case with
the FRAG 5 doors and standard threat (B-KIT) doors on your M1151A1 HMMWVs.
There’s been a lot of confusion identifying which door is which. And you’re not
supposed to mix the doors. So what’s a Soldier to do?
Get smart on the differences between the
two, that’s what you do! To start, make sure
you use the correct door NSNs for each type
of door. The following tables should help:
M1151A1 with Standard Threat (B-Kit) Doors
compared to M1151A1 with FRAG Kit 5 Doors
Qty
Nomenclature
NSN
2510-01-581-
4185
4179
4178
4180
Door, vehicle, front left
Door, vehicle, front right
Door, vehicle, rear left
Door, vehicle, rear right
1
1
1
1
Standard Threat (B-Kit) Doors
Qty
Nomenclature
NSN
2510-01-545-
5890
5887
5891
5893
Door, vehicle, front left
Door, vehicle, front right
Door, vehicle, rear left
Door, vehicle, rear right
1
1
1
1
FRAG 5 Doors
You should also pay attention to
the differences in the armor over and
under the windows. And see if the
doors line up with the body armor
under the door. That’s key to knowing
which door is on your vehicle.
M1151A1
HMMWV…
Door Detection Dilemma
Standard Threat (B Kit) Door Window top
bracket has a 90 degree bend
Standard Threat (B Kit) Doors have no bracket
on the bottom of window
Standard
Threat (B Kit)
Doors are
thinner and
do
not line
up with the
armor
FK5 Window Box has a rounded bend
FK5 Window has a bracket covering the bottom
of window
FK5 Doors are thicker and line
up almost flush to the armor
wait a minute, are
there two
different
doors here?
looks like it, but
I don’t think we’re
s’posed to mix ‘em!
you’re
not!
704.16-17.indd
1-2
5/26/11
7:24 PM
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