6091C098- ORDERING DATA CLIN 0002.pdf

This document is a procurement specification for a 4" NST discharge hose assembly for freshwater applications under CLIN 0002, ordering data HCD100X25BBSBR, with a quantity of 12 units required.

The hose assembly must meet specific technical requirements including 4" inner diameter with 4.83" outer diameter, working pressure of 350-450 PSI with a minimum burst pressure of 1,600 PSI, and temperature rating from -40°F to 200°F. The hose shall weigh maximum 2.70-2.80 lbs per foot without coupling and be resistant to weather, oil, solvent, and mild acid. Construction requirements specify a nitrile rubber inner tube, nitrile blend rubber with UHMPE wrapped finish cover, and high tensile dual static wire plies with a minimum of four for reinforcement. The assembly must be supplied in 25-foot lengths (±12 inches) with 4" male NPT fittings (8 threads per inch) in carbon steel equal to Dixon part number STC40CSHD, permanently attached by crimping with stainless steel ferrules. Each end must include adapters: 4" male hose (NST/NH 4 threads per inch) service brass pin 75 on one end and 4" female hose swivel with ball bearing (NST/NH 4 threads per inch) service brass pin 73 on the other end, both in bronze. All thread joints must use Loctite 562 series sealant; Teflon tape and plumbers putty are prohibited.

The supplier must provide written certification that assemblies have been hydrostatically tested at 600 PSIG with clean fresh water for 30 minutes with zero leaks, weeps, end fitting slippage, or bulges, with copies sent to Code 135 Building 276 and Code 532. The hose shall be Parker 731 1NXT-4000 or Novaflex oilfield fracking hose equivalent. Norfolk Naval Shipyard reserves the right to request sample assemblies for testing and evaluation at no cost to the government. Hoses must be palletized, and Code 269 shall review offeror specifications prior to award.