1300745705_SSJ_Final_Redacted1_Redacted.pdf

v1.2_JUNE 2016

SOLE SOURCE JUSTIFICATION

OK-542 Hydraulic Motor Parts

Background

The hydraulic motor parts identified below are components of the capstan and stowage drum hydraulic motors and are required for overhaul at the

Requirement has a requirement for the procurement of the following items:

Item Item Description Part Number Quantity 1 Rotor P04119200 1 2 Sealing Ring P04119900 80 3 Joint P04257000 4 4 Face Valve P04315000 2 5 Crosshead P04958400 15 6 Bearing Plate P04958500 60 7 Piston P04958600 70 8 Hex Head Screw U80002600 200 9 Hex Head Screw U80002606 200 10 Hex Head Screw U80002705 200 11 Spherical Roller Bearing U80028937 7 12 Spherical Roller Thrust Bearing U80029300 12 13 Dowel Pin U80033000 100 14 Back Up Ring U80044703 4 15 Glydring U80044849 64 16 Washer U80058800 100 17 External Circlip U80059401 10 18 Washer U80106101 100 19 Glydring U80106200 40 20 Split Ring P03147700 6 21 Brake Piston P03149100 4 22 Spring Guide P03149500 2 23 Ferrule P03150000 2 24 Crosshead P03504800 15 25 Piston P03797900 70

26 Loading Plunger P04178800 80 27 Plug P04257900 10 28 Spacer Ring P04292400 2 29 Locking Plate P04293100 2 30 Plug P04293600 8 31 Face Valve P04314900 1 32 Hex Head Screw U80002704 200 33 Hex Head Screw U80002708 100 34 Hex Head Screw U80002710 40 35 Hex Head Screw U80003708 88 36 O-Ring U80009436 100 37 External Circlip U80017317 100 38 External Circlip U80017354 100 39 Spherical Roller Bearing U80028925 6 40 Tapered Roller Bearing U80029416 6 41 Lock Washer U80031804 20 42 Dowel Pin U80033000 100 43 Dowel Pin U80033110 20 44 Dowel Pin U80033202 10 45 Glydring U80044800 100 46 Spiral Back Up Ring U80048536 100 47 Spring U80051310 100 48 Joint U80051605 60 49 Disc Spring U80055304 2000 50 Spring U80056914 100 51 Thrust Washer U80058400 100 52 Piston Back Up Washer U80058501 20 53 Piston Back Up Washer U80058502 8 54 Sintered Disc U80060406 10 55 Washer U80061601 77 56 Washer U80084703 500 57 Glydring U80106201 64 58 Washer U80111400 400 59 Setscrew Assembly P04855700 28 60 Screwed Rod P05979600 1 61 O-Ring U80008626 4 62 O-Ring U80008840 10 63 O-Ring U80063418 10 64 Sintered Disc U80060408 4

Sole Source Justification MacTaggart Scott & Co., LTD is the Original Equipment Manufacturer (OEM) of the hydraulic motors and component parts identified herein. MacTaggart Scott & Co., LTD owns proprietary specifications and manufacturing drawings for the hydraulic motors and parts.

to OEM specifications are required to assure compatibility, interchangeability and performance of the overhauled hydraulic motors.

The hydraulic motors were manufactured by MacTaggart Scott & Co., LTD for the U.S. Navy;

the only application for these motors is the . There are no other known motors that meet the same form, fit, and function requirements for use in .

Identification, qualification, and acceptance of another vendor would require the Navy to incur non-recurring engineering expenses and extensive life cycle testing previously done at an estimated cost of . This additional cost in addition to

These hydraulic motor parts are not available in the Federal Stock System.

Resellers

MacTaggart Scott & Co., LTD does not authorize the resale of their products.

Requiring Department Based on the above, I recommend this acquisition be conducted on a Sole Source Specification basis to MacTaggart Scott & Co., LTD. I certify the technical data which form the basis of this justification are complete and accurate.