M-198 155mm Howitzer Parts

End item NSN parts page 1 of 4
Part Number
NSN
NIIN
0203 Annular Ball Bearing
001567513
094-0625MCP Spring Pin
009265847
1025-563-7232 Artillery Cleaning Staff Section
005637232
1025-600-6780 Firing Lanyard
006006780
1025005637232 Artillery Cleaning Staff Section
005637232
1025006006780 Firing Lanyard
006006780
1025008605443 Unloading Artillery Rammer
008605443
10549868 Fire Control Instrument Cover
000840280
10556144 Base Plate
010982233
10556192 Reflector
010449858
105C3614-1 Annular Ball Bearing
001567513
105C3614-1A Annular Ball Bearing
001567513
111X04002X4000 Annular Ball Bearing
005543800
11578931 Eccentric Pin
010647132
11578958 Hose Clamp
010407282
11579739 Firing Lanyard
011294672
117-1CLPC27 Annular Ball Bearing
001567513
117-1PC27 Annular Ball Bearing
001567513
117-1TPC27 Annular Ball Bearing
001567513
11727865 Optical Instrument Mirror
010478283
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Howitzer, 155mm, M-198

Picture of M-198  155mm Howitzer

The M198 howitzer is a medium-sized, towed 155mm artillery piece, developed for service with the United States Army and Marine Corps. It was commissioned to be a replacement for the WWII-era M114 155 mm howitzer. It was designed and prototyped at the Rock Island Arsenal in 1969 with firing tests beginning in 1970 and went into full production there in 1978. It entered service in 1979 and since then 1,600 units have been produced and put into operation.

The M198 is being replaced in US and Australian service by the M777 howitzer.

The M198 155 mm howitzer weighs less than 16,000 pounds (7,300 kg), allowing it to be dropped by parachute or transported by a CH-53E Super Stallion or CH-47 Chinook. The M198 is a towed howitzer that is transported tail first. The gun tube can be rotated over the howitzer's trail legs to reduce its length, though this requires removal of the muzzle brake, or left in the firing position for faster deployment. When firing, the weapon is lowered onto its baseplate rather than being anchored to the ground, allowing for rapid emplacement. The breech is operated manually via a screw type mechanism that rests low in an ergonomic position. The M198 fires non-fixed ammunition and can be loaded with a variety of propellants and projectiles. The effective range is 18,100 meters when firing standard projectiles, which increases to 30,000 meters when firing rocket-assisted projectiles and guided ammunition. With the 52-caliber modification the range can surpass 40,000 meters. The weapon system requires a crew of 9 and is capable of firing at a maximum rate of four rounds per minute, two sustained.

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