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Technical Data Sheet
PartsTable / COMPONENT / H-391
H-391 ✓ 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 ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include body_length: 0.437 INCHES MAXIMUM IN, inclosure_type: FULLY INCLOSED, mounting_method: TERMINAL SINGLE GROUP, frequency_rating: 33.3 KILOHERTZ NOMINAL SINGLE COMPONENT, inductance_rating: 12.00 MILLIHENRIES MINIMUM SINGLE COMPONENT SINGLE PRIMARY, body_outside_diameter: 0.750 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-882-1379, 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
H-391
NSN: 4720-00-882-1379
FSC: 4720
CAGE: 88334 — DANA CORP WAREHOUSE OPERATIONS WESTERN REGION WAREHOUSE (USA)
SPECIFICATIONS
body_length0.437 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
mounting_methodTERMINAL SINGLE GROUP
frequency_rating33.3 KILOHERTZ NOMINAL SINGLE COMPONENT
inductance_rating12.00 MILLIHENRIES MINIMUM SINGLE COMPONENT SINGLE PRIMARY
body_outside_diameter0.750 INCHES MAXIMUM IN
reliability_indicatorNOT ESTABLISHED
maximum_operating_temp105.0 CELSIUS DEGC
winding_operating_current300.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT ALL SECONDARY
terminal_type_and_quantity6 PIN
dc_resistance_rating_in_ohms0.065 SINGLE COMPONENT ALL SECONDARY
winding_function_and_quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
NSN4720-00-882-1379
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: H-391 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
21916Interchangeable
interchangeable cross-reference
interchangeable
120114-3-25Interchangeable
interchangeable cross-reference
interchangeable
320944Interchangeable
interchangeable cross-reference
interchangeable
711443-1Interchangeable
interchangeable cross-reference
interchangeable
1DEA106CInterchangeable
interchangeable cross-reference
interchangeable
EA136Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is H-391?
H-391 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace H-391?
There are 23 known substitutes for H-391: 21916, 120114-3-25, 320944 and 20 more. Substitute compatibility should be verified for your specific system.
Is H-391 still available?
H-391 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026