GRACO 555453 – Steel Hex Shoulder Nipples – Straight, 1/4″ x 1/4″ Threads, 1/4″ NPT, Up to 2

GRACO 555453 – Steel Hex Shoulder Nipples – Straight, 1/4″ x 1/4″ Threads, 1/4 NPT, Up to 2

Essential plumbing fitting designed for professional fluid handling systems, providing reliable straight connections in high-pressure progressive cavity pump applications. These street elbows enable secure fluid line connections in GRACO’s G3 Pro Grease and MSP Series progressive pump systems.

Specifications

Thread: 1/4 NPT

Max Working Pressure: up to 2,500 psi

Fitting Type: street elbow

Features

1/4 NPT threaded connection

Street elbow configuration

High-pressure rated for fracturing applications

Compatible with progressive pump systems

1/4 NPT threaded connections for secure fitting

Street elbow configuration for space-efficient installations

Applications

Triplex fracturing operations

Progressive pump fluid connections

High-pressure grease and fluid transfer systems

Progressive cavity pump fluid line connections

Grease lubrication systems

Industrial fluid handling applications

Compatible Equipment

MSP Series Progressive pumps

Triplex pump configurations

G3 Pro Grease pump systems

Quintuplex pump configurations

Related Parts

563061 – Check valve, double ball

156971 – 1/4 NPT hex nipple

556420 – 1/4 NPT service tee

563160 – 2,500 psi relief

557874 – Quick fill stud 1/4 in NPT

563061 – Double Ball Check Valve 48 PSI Nominal Cracking PSI, 1/4″ NPSF (F) x 1/4″ NPSF (F), SS Body/FKM Ball, 7500 PSI

156971 – Hose Fitting, 1/4″ NPT(M) x 1/4″ NPT(M), 1/4″ x 1/4″

556420 – Male Run Tee Fitting – 1/4″ NPT Male x (2) 1/4″ NPT Female

563160 – Automatic Relief Indicator for MX Divider Valves, 2500 psi

557874 – Stud Fill 4ts5-21000

Quantity of 3 included in both 12V and 24V Triplex Frac Kits. Part of complete fracturing pump system designed for time-based progressive lubrication applications. This part is included as a quantity of 5 pieces in both the 12V and 24V G3 Pro Grease/MSP Series Progressive Quintuplex Kits, indicating it’s a commonly needed fitting for complete system installations. Quantity of 3 included in both 12 VDC and 24 VDC Triplex Kit configurations. Part of comprehensive triplex pump system with monitoring capabilities and downloadable system monitoring.

Reference Manuals

352295 (Page 4) Fracturing Equipment Selection Guide