Prop SOW1.docx
DOCX document 28 KB Posted
- Attached to
- Shaft and Prop repair
- Solicitation number
- 70Z02426Q0000324
About this file
This is a Statement of Work (SOW) for the repair of three propulsion shafts for United States Coast Guard vessels. The contractor shall repair port and starboard shafts according to specified technical requirements, including welding up coupling pin holes, addressing crevice corrosion, straightening shafts to specification, supplying and fitting standard keys, and installing new hex nuts and stainless steel pins. The work requires precise measurements of propeller shaft Total Indicator Reading (TIR) at multiple locations, with tolerances not exceeding 0.002 inches at the machined taper surface and coupling end, and 0.005 inches overall. Additional technical requirements include repairing keyways and fabricated keys per Coast Guard Drawing 49A BUSL 243-001, performing lapp fits on the starboard propeller, and ensuring minimum 60% propeller contact area through bluing surface analysis. All repairs must comply with Surface Forces Logistics Center Standard Specifications 0000 and 0740 (2014) and Coast Guard Technical Publication 3345.
The contractor must submit a comprehensive report detailing all measurements, inspections, and findings upon completion. Supporting technical drawings include shaft arrangement, bearing details, coupling specifications, propeller details, and rudder/steering gear arrangements. Notably, no additional repair work beyond the quoted scope shall commence without explicit written authorization from the Contracting Officer, and the government reserves the right to reject repairs after reviewing the condition and feasibility report. This is a small business set-aside procurement (NAICS 332710, 500-employee threshold) conducted as an Open Market Request for Quote, with quote submissions due September 9, 2026 at 12:00 p.m. EST and questions due by September 4, 2026. Evaluation will be based on technical experience, relevant experience with similar scope and complexity, and price reasonableness.
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Other files
| File | Type | Posted |
|---|---|---|
| DEI FAR Clause.pdf | ||
| Prop SOW.pdf | ||
| Clauses new.pdf | ||
| Prop WD.pdf |
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Text version
SOW 02: PROPULSION SHAFT(S) REPAIR:
SCOPE - INTENT: The contractor shall repair in accordance with technical requirements for three propulsion shafts, noting overall condition and required measurements. The repair report shall include final runout measurements required to return the shafts to the technical standards per documents that are referenced below. NO ADDITIONAL REPAIR WORK OTHER THAN WHAT WAS QUOTED SHALL COMMENCE UNTIL EXPLICITLY AUTHORIZED BY THE CONTRACTING OFFICER.
Drawings:49A BUSL 114-004 SKEG/Shaft Tube Arrangement & Details 49A BUSL 243-001 Propulsion Shafting and Bearing Arrangement
| 49A BUSL 243-002 Propulsion Shaft Modifications |
| 49A BUSL 243-050 7 ½” Split Coupling |
| 49A BUSL 245-001 Propeller Details |
| 49A BUSL 562-001 Rudder & Steering Gear Arrangement & Details |
| 49A BUSL 601-003 Outboard Profile/Mn Dk |
References: Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2014, Welding and Allied Processes Coast Guard Technical Publication (TP) 3345, SWBS 079-259, Oct 2006, Manufacturer’s Instruction Book Shafts: Quantity (2)
TECHNICAL REQUIREMENTS PORT SHAFT:
PROPELLER SHAFT REPAIR:
-The contractor shall Repair the following on three shafts:
-Provide supports at each bearing surface.
Weld up coupling pin hole and dimple, crevice corrosion on shaft and packing surface fit, pin and face coupling Supply, make and fit std keys Fit new hex nuts Fit new 5/8 SS Pins Straighten shaft to spec -The Contractor shall take the following measurements on shafts:
-Propeller Shaft TIR (Total Indicator Reading) at Machined Taper Surface, perform fit of propeller (provided) onto shaft insuring at a minimum of 60% contact by means of bluing surfaces and measuring contact area.
-Propeller Shaft TIR at Coupling End of Shaft. Fit and Pin shaft coupling to be kept with each individual shaft (Provided as GFE) -Propeller Shaft TIR -The Contractor shall repair all keyways and fabricate keys in accordance with CG Drawing 49A BUSL 243-001.
TECHNICAL REQUIREMENTS STARBOARD SHAFT:
PROPELLER SHAFT REPAIR:
-The contractor shall Repair the following on Starboard shaft:
-Provide supports at each bearing surface.
Weld up coupling pin hole and dimple, crevice corrosion on shaft and packing surface fit, pin and face coupling Supply, make and fit std keys Propeller end keyway width 0.6265 oversize, make step key Fit new hex nuts Fit new 5/8 SS Pins Straighten shaft to spec Lapp fit propeller
| -The Contractor shall take the following measurements on Port shaft: | ||
| -Propeller Shaft TIR at Machined Taper Surface, perform fit of propeller (provided) onto | shaft insuring at a minimum of 60% contact by means of bluing surfaces and measuring | contact area. |
-Propeller Shaft TIR at Coupling End of Shaft -Propeller Shaft TIR -The Contractor shall repair all keyways and fabricate keys in accordance with CG Drawing 49A BUSL 243-001.
-The Contractor shall repair in accordance with SFLC Std Spec 0740:
-Shaft taper -Keyways -Keys -Welded repair surfaces
-The contractor shall submit a comprehensive report of all readings, inspections, and findings noted above.
Table 2 - Propulsion Shaft Measurements
| Measurement Locations |
| Measurements |
| Tolerances |
Propeller Shaft TIR at Machined Taper Surface
No > .002 inch TIR
Propeller Shaft TIR at Coupling End of Shaft
No > .002 inch TIR
Propeller Shaft TIR
No > .005 inch TIR
Propeller Shaft Coupling Flange Face Runout at Edge
No > .002 inch TIR
Propeller Shaft Coupling Bore Diameter
2.499 inches - 2.5000 inches
| Propeller Shaft Journal OD @ Stern Tube Bearing |
| Fwd |
| Middle |
| Aft |
| 2.505 inches max, 2.499 inches min |
| Propeller Shaft Journal OD @ Intermediate Bearing |
| Fwd |
| Middle |
| Aft |
| 2.505 inches max, 2.499 inches min |
Stern Tube Bearing ID
2.580 inches max
Intermediate Bearing ID
2.580 inches max
- The government reserves the right to not make any repairs to the shafts after reviewing the “CFR” inspection report.
File details come from the government source that posted it. Updated .