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PartsTable / COMPONENT / M17902-B-NCA-50
M17902-B-NCA-50 ✓ 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 connection_type: THREADED EXTERNAL PIPE FIRST END, inside_diameter: 2.50 INCHES NOMINAL IN, connection_style: SWIVEL NUT, FLARELESS SECOND END, outside_diameter: 3.125 INCHES NOMINAL IN, burst_test_pressure: 500.00 POUNDS PER SQUARE INCH LBS, nominal_thread_size: 2.5 INCHES ALL ENDS 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 4720-01-655-8697, 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
M17902-B-NCA-50
NSN: 4720-01-655-8697
FSC: 4720
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
connection_typeTHREADED EXTERNAL PIPE FIRST END
inside_diameter2.50 INCHES NOMINAL IN
connection_styleSWIVEL NUT, FLARELESS SECOND END
outside_diameter3.125 INCHES NOMINAL IN
burst_test_pressure500.00 POUNDS PER SQUARE INCH LBS
nominal_thread_size2.5 INCHES ALL ENDS IN
end_connection_designSTRAIGHT ALL ENDS
inside_surface_conditionSMOOTH
thread_quantity_per_inch8 ALL ENDS
thread_series_designatorNPT ALL ENDS
hydrostatic_test_pressure250.0 POUNDS PER SQUARE INCH LBS
cross-sectional_shape_styleROUND
NSN4720-01-655-8697
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: M17902-B-NCA-50 · 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
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
OUTSIDE DIAMETER: 3.125 INCHES NOMINAL IN
•
INSIDE DIAMETER: 2.50 INCHES NOMINAL IN
•
CONNECTION STYLE: PLAIN FIRST END
•
CONNECTION TYPE: THREADED INTERNAL PIPE SECOND END
•
THREAD QUANTITY PER INCH: 8 ALL ENDS
•
END CONNECTION DESIGN: STRAIGHT ALL ENDS
•
INSIDE SURFACE CONDITION: SMOOTH
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLEROUND
OUTSIDE DIAMETER3.125 INCHES NOMINAL IN
INSIDE DIAMETER2.50 INCHES NOMINAL IN
CONNECTION STYLEPLAIN FIRST END
CONNECTION TYPETHREADED INTERNAL PIPE SECOND END
THREAD QUANTITY PER INCH8 ALL ENDS
END CONNECTION DESIGNSTRAIGHT ALL ENDS
INSIDE SURFACE CONDITIONSMOOTH
NOMINAL THREAD SIZE2.5 INCHES ALL ENDS IN
LAYER COMPOSITION AND LOCATION1ST LAYER MOLDED RUBBER AND OUTER LAYER RUBBER IMPREGNATED HELIX WIRE COIL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
MILH17902TYPEBInterchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-17902Interchangeable
interchangeable cross-reference
interchangeable
FK6040PPP6000Interchangeable
interchangeable cross-reference
interchangeable
548SK108Interchangeable
interchangeable cross-reference
interchangeable
MIL-H-21291Interchangeable
interchangeable cross-reference
interchangeable
4-1191Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M17902-B-NCA-50?
M17902-B-NCA-50 is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace M17902-B-NCA-50?
There are 15 known substitutes for M17902-B-NCA-50: MILH17902TYPEB, MIL-DTL-17902, FK6040PPP6000 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M17902-B-NCA-50?
M17902-B-NCA-50 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-655-8697. 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