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AT1201 ✓ 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,METALLIC is a the manufacturer industrial component. Key specifications include flow_angle: 90.0 DEGREES SECOND END, thread_class: 3B FIRST END, connection_type: THREADED INTERNAL HOSE FIRST END, inside_diameter: 0.625 INCHES NOMINAL IN, connection_style: DOUBLE COMPRESSION FIRST END, outside_diameter: 1.000 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 4720-00-580-1990, 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
AT1201
NSN: 4720-00-580-1990
FSC: 4720
CAGE: 70510 — HYSPAN PRECISION PRODUCTS, INC. (USA)
SPECIFICATIONS
flow_angle90.0 DEGREES SECOND END
thread_class3B FIRST END
connection_typeTHREADED INTERNAL HOSE FIRST END
inside_diameter0.625 INCHES NOMINAL IN
connection_styleDOUBLE COMPRESSION FIRST END
outside_diameter1.000 INCHES NOMINAL IN
thread_directionRIGHT-HAND FIRST END
nominal_thread_size0.875 INCHES FIRST END IN
end_connection_designELBOW SECOND END
thread_quantity_per_inch14 SECOND END
thread_series_designatorUNF SECOND END
inner_conveying_tube_styleHELICAL CLOSE-PITCH CORRUGATED
NSN4720-00-580-1990
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: AT1201 · 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
•
MINIMUM INSIDE BENDING RADIUS: 10.000 INCHES IN
•
CONNECTION TYPE: THREADED INTERNAL HOSE SECOND END
•
FLOW ANGLE: 90.0 DEGREES SECOND END
•
INNER CONVEYING TUBE STYLE: HELICAL CLOSE-PITCH CORRUGATED
•
INSIDE DIAMETER: 0.625 INCHES NOMINAL IN
•
CONNECTION STYLE: DOUBLE COMPRESSION FIRST END
•
OUTSIDE DIAMETER: 1.000 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 14 FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
MINIMUM INSIDE BENDING RADIUS10.000 INCHES IN
CONNECTION TYPETHREADED INTERNAL HOSE SECOND END
FLOW ANGLE90.0 DEGREES SECOND END
INNER CONVEYING TUBE STYLEHELICAL CLOSE-PITCH CORRUGATED
INSIDE DIAMETER0.625 INCHES NOMINAL IN
CONNECTION STYLEDOUBLE COMPRESSION FIRST END
OUTSIDE DIAMETER1.000 INCHES NOMINAL IN
THREAD QUANTITY PER INCH14 FIRST END
NOMINAL THREAD SIZE0.875 INCHES SECOND END IN
THREAD CLASS3B SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
3L04X1XInterchangeable
interchangeable cross-reference
interchangeable
3L04X1Interchangeable
interchangeable cross-reference
interchangeable
6104Interchangeable
interchangeable cross-reference
interchangeable
18120-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AT1201?
AT1201 is a HOSE ASSEMBLY,METALLIC.
What parts can replace AT1201?
There are 4 known substitutes for AT1201: 3L04X1X, 3L04X1, 6104 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AT1201?
AT1201 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-580-1990. 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