Boat Davits Parts

(Page 5) End item NSN parts page 5 of 6
Part Number
NSN
NIIN
15771 Parts Kit
009522773
1603468 Annular Ball Bearing
001588253
160SD30 Self-aligning Roller Bearing
001559062
162L516P38 Annular Ball Bearing
001588253
164B133 Sleeve Bearing
008994522
1662791 Tapered Roller Bearing Cup
001437586
1662793 Tapered Roller Cone And Rollers
001437538
16771 Parts Kit
009522773
173676 Tapered Roller Cone And Rollers
001000787
17429P11 Tapered Roller Bearing Cup
001000593
177002-91 Annular Ball Bearing
001556229
177003-96 Annular Ball Bearing
001448564
17X154 Tapered Roller Cone And Rollers
002770105
17X184 Tapered Roller Bearing Cup
001437586
17X185 Tapered Roller Cone And Rollers
001437538
180552-A Shim Set
012962760
181-207 Annular Ball Bearing
005555429
182-415 Annular Ball Bearing
001564745
189637 Tapered Roller Bearing Cup
001000593
19FK0637 Tapered Roller Bearing Cup
001000593
Page: 5

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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