[bruinbirdman]

"55 R-36M2 (SS-18) with 550 warheads"

Trident D5 can carry 12 MIRVs. SALT I limited them to 8 warheads and SORT (Strategic Offensive Reductions Treaty 1 June 2003) to 4 or 5.

yitbos

[moonshot925]

Trident D5 can actually carry 14 W76 warheads in a lower-range maximum payload configuration.

As of 2010, there are 1,152 warheads deployed on 288 Trident D5 SLBMs.

568 W76 (100 kt)
200 W76-1 (100 kt)
384 W88 (455 kt)

The W76-1 is a refurbished W76 warhead.

http://www.armscontrol.org/factsheets/USStratNukeForceNewSTART