Boat Davits Parts

(Page 2) End item NSN parts page 2 of 6
Part Number
NSN
NIIN
0624G0123-8 Sleeve Bearing
003524713
080551 Tapered Roller Bearing Cup
001000593
080818600 Sleeve Bearing
011404748
0BRU1307TM Cylindrical Roller Bearing
001007336
0BT39520 Tapered Roller Bearing Cup
001437586
0BT39590 Tapered Roller Cone And Rollers
001437538
1-443696 Tapered Roller Bearing Cup
001437586
1-7451072 Tapered Roller Cone And Rollers
001437538
10018960-004 Annular Ball Bearing
002750117
10085887 Tapered Roller Bearing
002272338
10279 Plain Bearing Unit
000718046
104-64-410 Friction Lining
002256035
104722 Sleeve Bearing
006617869
104HD-0-410W Shoe Type Brake
011809925
104HD-31A-410V Friction Lining
002256035
10501787 Tapered Roller Cone And Rollers
002770105
10501789 Tapered Roller Bearing Cup
001437586
1050CM Annular Ball Bearing
000685437
1055 Needle Roller Bearing
004205760
1074596 Self-aligning Roller Bearing
001559062
Page: 2

Boat Davits

Picture of Boat Davits

A davit is any of various cranelike devices used on a ship for supporting, raising, and lowering boats, anchors, etc.

Davit systems are most often used to lower an emergency lifeboat to the embarkation level to be boarded. Davits can also be used as man-overboard safety devices to retrieve personnel from the water.

The lifeboat davit has falls (now made of wire, historically of manila rope) that are used to lower the lifeboat into the water. Davits can also refer to single mechanical arms with a winch for lowering and raising spare parts onto a vessel and for lowering any other equipment from the deck of a vessel or a pontoon to the water. The maintaining and operation of davits is all under jurisdiction of International Maritime Organization. The regulations are enforced by the country's own Coast Guard.

The development of the davit from its original "goose neck form" to the current devices advanced greatly when A.P. Schat patented a number of systems in 1926 that allowed the lifeboat to glide over obstructions on a ship's hull, known as the "Schat Skate". This was followed by a self-braking winch system that allowed the lifeboat to be lowered evenly. The standard became so common that shipyard specifications call for Schat-type davits which are available from various sources. Similar systems developed by Schat companies are used on offshore oil or gas rigs, being placed around the structure.

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