PartsTable
Technical Data Sheet
MIL-H-13444,TYPE III,SIZE 20 ✓ 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 MIL-H-13444,TYPE III,SIZE 20 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-337-5128, 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
MIL-H-13444,TYPE III,SIZE 20
NSN: 4720-01-337-5128
FSC: 4720
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberMIL-H-13444,TYPE III,SIZE 20
NSN4720-01-337-5128
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — PN: MIL-H-13444,TYPE III,SIZE 20 · 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
INSIDE DIAMETER: 1.125 INCHES NOMINAL IN
MINIMUM INSIDE BENDING RADIUS: 4.500 INCHES IN
OUTSIDE DIAMETER: 1.518 INCHES NOMINAL IN
LAYER COMPOSITION AND LOCATION: 1ST LAYER BRAIDED TEXTILE YARN AND 2ND LAYER BRAIDED STEEL WIRE AND OUTER LAYER BRAIDED FIBER
BURST TEST PRESSURE: 1200.0 POUNDS PER SQUARE INCH LBS
SPECIFICATION/STANDARD DATA: 81349-MIL-H-13444 GOVERNMENT SPECIFICATION
HYDROSTATIC TEST PRESSURE: 600.0 POUNDS PER SQUARE INCH LBS
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER1.125 INCHES NOMINAL IN
MINIMUM INSIDE BENDING RADIUS4.500 INCHES IN
OUTSIDE DIAMETER1.518 INCHES NOMINAL IN
LAYER COMPOSITION AND LOCATION1ST LAYER BRAIDED TEXTILE YARN AND 2ND LAYER BRAIDED STEEL WIRE AND OUTER LAYER BRAIDED FIBER
END ITEM IDENTIFICATIONLAV 25
BURST TEST PRESSURE1200.0 POUNDS PER SQUARE INCH LBS
SPECIFICATION/STANDARD DATA81349-MIL-H-13444 GOVERNMENT SPECIFICATION
HYDROSTATIC TEST PRESSURE600.0 POUNDS PER SQUARE INCH LBS
INSIDE SURFACE CONDITIONSMOOTH
OPERATING PRESSURE300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
24320Interchangeable
interchangeable cross-reference
interchangeable
22350Interchangeable
interchangeable cross-reference
interchangeable
FC173-20Interchangeable
Same NIIN cross-reference
interchangeable
MIL-H-13444Interchangeable
Same NIIN cross-reference
interchangeable
MIL-DTL-13444Interchangeable
Same NIIN cross-reference
interchangeable
M13444, TYPE III, SIZE 20Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-H-13444,TYPE III,SIZE 20?
MIL-H-13444,TYPE III,SIZE 20 is a MIL-H-13444,TYPE III,SIZE 20.
What parts can replace MIL-H-13444,TYPE III,SIZE 20?
There are 6 known substitutes for MIL-H-13444,TYPE III,SIZE 20: 24320, 22350, FC173-20 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-H-13444,TYPE III,SIZE 20?
MIL-H-13444,TYPE III,SIZE 20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-337-5128. This indicates validated use in U.S. government and defense supply chains.
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