NSN 1680-530-3831 (Aerial Nozzle Press, (Coupler) )

This action is to establish a Requirements Contract for the acquisition of the HC/MC-130 Aerial Nozzle Press (Hereafter referred to as the Coupler or Coupling),National Stock Number (NSN):1680-01-530-3831, Part Number (P/N): 50725, which is a non-commercial item that is applicable to the HC/MC-130 Aircrafts.

The Coupling National Stock Number (NSN):1680-01-530-3831, Part Number(P/N): 50725, is attached to the refueling hose just AFT of the ejection spring. The coupling consists primarily of a housing, locking mechanism, poppet valve, and connector. The coupling also includes a hose end pressure regulating feature which pre-vents surges in fuel delivery pressure, which prevents damage to fuel system components on the receiver airplane, and also to an extent on the tanker airplane.

The housing is cone shaped to guide the entrance of the mating nozzle on the receiver airplane. There are three locking mechanisms, consisting of spring-loaded pistons, eccentrically attached to arms and rollers. Insertion of the receiver probe nozzle actuates the arm and roller assemblies. Passages are provided in the housing to allow a sample of fluid pressure into piston chambers of locking mechanisms.

This fluid pressure, tapped from the fuel flow passing to the receiver airplane, adds pressure to the roller locking mechanisms to in-crease the force required for disconnect to420 ±20 pounds. The spring-loaded closed poppet valve is mounted in a ball-shaped housing extension. The poppet valve is opened by the tip of the receiver airplane probe nozzle upon its insertion. The connector, with a ring and connector cap, forms a socket for the ball shaped housing extension.

The Government does not own the technical data package for this item. This requirement will be solicited sole source to manufacturer BLUEAEROSPACE LLC (CAGE 1WZW9) pursuant to 10 USC 2304(c)(1); FAR 6.302-1. All responsible sources may submit a capability statement, proposal or quotation, which shall be considered by the agency.