6091C098- ORDERING DATA.pdf

This is a product specification document for a federal contract opportunity with Norfolk Naval Shipyard for the procurement of 4" NST discharge hose assemblies for freshwater use.

The item specification (CLIN 0001) requires 12 units of 4" inner diameter by 4.83" outer diameter hose assemblies, part number HCD400X50BBSBR, supplied in 50-foot lengths with a tolerance of +12" to -12". The hose must meet specific performance standards including a working pressure of 350-450 PSI, minimum burst pressure of 1,600 PSI, temperature rating of -40°F to +200°F, and weight not exceeding 2.70-2.80 lbs per foot without coupling. The hose construction shall feature 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 reinforcing layers. The assembly must be weather, oil, solvent, and mild acid resistant. Each hose assembly requires permanently crimped 4" male NPT fittings (carbon steel, equivalent to Dixon part number STC40CSHD) on both ends, with adapters consisting of a 4" male hose NST fitting (service brass PIN 75) on one end and a 4" female hose swivel ball bearing NST fitting (service brass PIN 73) on the other end. All thread joints must use Loctite 562 series sealant; Teflon tape and plumbers putty are prohibited. Each assembly must be labeled with manufacturer name, contract number, and pressure rating. The supplier must provide written certification that assemblies have been hydrostatically tested at 600 PSIG with clean freshwater 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 must be Parker 7311NXT-4000 or Novaflex Oilfield Fracking Hose equivalent, and assemblies must be palletized. Code 269 shall review offeror specifications prior to award. Norfolk Naval Shipyard reserves the right to request sample assemblies for testing and evaluation at no cost to the government.