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PartsTable / COMPONENT / PL405550-01-01 FN 191
PL405550-01-01 FN 191 ✓ Verified by PartsTable
— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

The HOSE ASSEMBLY,NONMETALLIC is a the manufacturer industrial component. Key specifications include flow_angle: 45.0 DEGREES SECOND END, seat_angle: 12.0 DEGREES FIRST END, temp_rating: -40.0 FAHRENHEIT AND 300.0 FAHRENHEIT SINGLE RESPONSE DEGF, thread_class: 2B SECOND END, connection_type: THREADED INTERNAL TUBE SECOND END, inside_diameter: 0.500 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-474-3368, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
PL405550-01-01 FN 191
NSN: 4720-01-474-3368
FSC: 4720
CAGE: 63631 — BAE SYSTEMS CONTROLS INC. (USA)
SPECIFICATIONS
flow_angle45.0 DEGREES SECOND END
seat_angle12.0 DEGREES FIRST END
temp_rating-40.0 FAHRENHEIT AND 300.0 FAHRENHEIT SINGLE RESPONSE DEGF
thread_class2B SECOND END
connection_typeTHREADED INTERNAL TUBE SECOND END
inside_diameter0.500 INCHES NOMINAL IN
connection_styleSWIVEL NUT, FLARELESS SECOND END
outside_diameter0.500 INCHES NOMINAL IN
special_featuresMATERIAL IS 316L; SPEC ALLOWS EITHER 316L OR 321 SS
thread_directionRIGHT-HAND FIRST END
operating_pressure100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
nominal_thread_size0.750 INCHES SECOND END IN
NSN4720-01-474-3368
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: PL405550-01-01 FN 191 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OPERATING PRESSURE: 100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
•
THREAD DIRECTION: RIGHT-HAND FIRST END
•
CONNECTION TYPE: THREADED INTERNAL TUBE SECOND END
•
CONNECTION STYLE: SWIVEL NUT FLARE FIRST END
•
OUTSIDE DIAMETER: 0.500 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
•
THREAD CLASS: 2B SECOND END
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESMATERIAL IS 316L; SPEC ALLOWS EITHER 316L OR 321 SS
OPERATING PRESSURE100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
THREAD DIRECTIONRIGHT-HAND FIRST END
CONNECTION TYPETHREADED INTERNAL TUBE SECOND END
CONNECTION STYLESWIVEL NUT FLARE FIRST END
OUTSIDE DIAMETER0.500 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
THREAD CLASS2B SECOND END
THREAD DIRECTIONRIGHT-HAND SECOND END
END CONNECTION DESIGNSTRAIGHT FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
1EN1-SInterchangeable
interchangeable cross-reference
interchangeable
633298-01Interchangeable
interchangeable cross-reference
interchangeable
D3082Interchangeable
interchangeable cross-reference
interchangeable
C3082Interchangeable
interchangeable cross-reference
interchangeable
64A90C166Interchangeable
interchangeable cross-reference
interchangeable
PL405550-01-01Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PL405550-01-01 FN 191?
PL405550-01-01 FN 191 is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace PL405550-01-01 FN 191?
There are 20 known substitutes for PL405550-01-01 FN 191: 1EN1-S, 633298-01, D3082 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for PL405550-01-01 FN 191?
PL405550-01-01 FN 191 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-474-3368. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026