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Technical Data Sheet
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AN6270 ✓ 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 INTERNAL HOSE ALL ENDS, inside_diameter: 0.375 INCHES NOMINAL IN, outside_diameter: 0.375 INCHES NOMINAL IN, end_item_identification: B-52 AIRCRAFT, cross-sectional_shape_style: ROUND, measuring_method_and_length: 12.0 INCHES NOMINAL WORKING 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 4720-00-001-0057, 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
AN6270
NSN: 4720-00-001-0057
FSC: 4720
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
connection_typeTHREADED INTERNAL HOSE ALL ENDS
inside_diameter0.375 INCHES NOMINAL IN
outside_diameter0.375 INCHES NOMINAL IN
end_item_identificationB-52 AIRCRAFT
cross-sectional_shape_styleROUND
measuring_method_and_length12.0 INCHES NOMINAL WORKING IN
part_name_assigned_by_controlling_agencyHOSE ASSEMBLY DETACHABLE SWIVEL FITTING, LOW PRESSURE
NSN4720-00-001-0057
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: AN6270 · 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
•
TEMP RATING: -67.0 FAHRENHEIT AND 158.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
CONNECTION STYLE: SWIVEL NUT FLARE FIRST END
•
THREAD CLASS: 3B FIRST END
•
INSIDE DIAMETER: 0.250 INCHES NOMINAL IN
•
MEDIA FOR WHICH DESIGNED: AIR SINGLE RESPONSE
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
•
OPERATING PRESSURE: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
•
CONNECTION TYPE: THREADED INTERNAL TUBE FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
TEMP RATING-67.0 FAHRENHEIT AND 158.0 FAHRENHEIT SINGLE RESPONSE DEGF
CONNECTION STYLESWIVEL NUT FLARE FIRST END
THREAD CLASS3B FIRST END
INSIDE DIAMETER0.250 INCHES NOMINAL IN
MEDIA FOR WHICH DESIGNEDAIR SINGLE RESPONSE
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
OUTER COVERING ENVIRONMENTAL PROTECTIONABRASION RESISTANT AND FUEL RESISTANT AND OIL RESISTANT
HYDROSTATIC TEST PRESSURE400.0 POUNDS PER SQUARE INCH LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 1
AN6270-4D-0590Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN6270?
AN6270 is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace AN6270?
There is 1 known substitute for AN6270: AN6270-4D-0590. Substitute compatibility should be verified for your specific system.
What is the NSN for AN6270?
AN6270 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-001-0057. 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