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PartsTable / COMPONENT / H3776
H3776 ✓ 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 exterior_color: NATURAL, connection_type: THREADED INTERNAL PIPE FIRST END, inside_diameter: 0.250 INCHES NOMINAL IN, connection_style: PLAIN OPTIONAL END FIRST END, outside_diameter: 0.735 INCHES NOMINAL IN, special_features: FURNISHED WITH VALVE AND CGA320 SWIVEL NUT CONNECTION ON ONE END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-343-7035, 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
H3776
NSN: 4720-00-343-7035
FSC: 4720
CAGE: 24871 — HAROLD D HARD CO (USA)
SPECIFICATIONS
exterior_colorNATURAL
connection_typeTHREADED INTERNAL PIPE FIRST END
inside_diameter0.250 INCHES NOMINAL IN
connection_stylePLAIN OPTIONAL END FIRST END
outside_diameter0.735 INCHES NOMINAL IN
special_featuresFURNISHED WITH VALVE AND CGA320 SWIVEL NUT CONNECTION ON ONE END
thread_directionRIGHT-HAND FIRST END
features_providedIDENTICAL ENDS
nominal_thread_size0.375 INCHES FIRST END IN
end_connection_designSTRAIGHT FIRST END
thread_series_designatorNPT FIRST END
inner_conveying_tube_styleHELICAL CLOSE-PITCH CORRUGATED
NSN4720-00-343-7035
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: H3776 · 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
•
EXTERIOR COLOR: NATURAL
•
THREAD SERIES DESIGNATOR: NPT FIRST END
•
END CONNECTION DESIGN: STRAIGHT FIRST END
•
INSIDE DIAMETER: 0.250 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 0.735 INCHES NOMINAL IN
•
LAYER COMPOSITION AND LOCATION: OUTER LAYER SPIRAL INTERLOCKED COPPER
•
CONNECTION STYLE: PLAIN OPTIONAL END FIRST END
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
EXTERIOR COLORNATURAL
THREAD SERIES DESIGNATORNPT FIRST END
END CONNECTION DESIGNSTRAIGHT FIRST END
INSIDE DIAMETER0.250 INCHES NOMINAL IN
OUTSIDE DIAMETER0.735 INCHES NOMINAL IN
LAYER COMPOSITION AND LOCATIONOUTER LAYER SPIRAL INTERLOCKED COPPER
CONNECTION STYLEPLAIN OPTIONAL END FIRST END
CROSS-SECTIONAL SHAPE STYLEROUND
INNER CONVEYING TUBE STYLEHELICAL CLOSE-PITCH CORRUGATED
CONNECTION TYPETHREADED INTERNAL PIPE FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
53740Interchangeable
interchangeable cross-reference
interchangeable
UKSS5835A8Interchangeable
interchangeable cross-reference
interchangeable
40586000269Interchangeable
interchangeable cross-reference
interchangeable
Z-126Interchangeable
interchangeable cross-reference
interchangeable
1114GInterchangeable
interchangeable cross-reference
interchangeable
H53740Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is H3776?
H3776 is a HOSE ASSEMBLY,METALLIC.
What parts can replace H3776?
There are 6 known substitutes for H3776: 53740, UKSS5835A8, 40586000269 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for H3776?
H3776 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-343-7035. 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