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Technical Data Sheet
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77E1IN ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The COUPLING,CLAMP,PIPE is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC GASKET, special_features: W/BOLTS AND NUTS ZINC ELECTROPLATED, pipe_size_accommodated: 1.000 INCHES NOMINAL IN, working_pressure_rating: 1000.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS, end_type_for_which_designed: GROOVED, tube_outside_diameter_for_which_designed: 1.315 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 4730-01-186-3778, 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
77E1IN
NSN: 4730-01-186-3778
FSC: 4730
CAGE: 79154 — VICTAULIC COMPANY OF AMERICA INC DBA VICTAULIC COMPANY OF AMERICA (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC GASKET
segment_quantity2
special_featuresW/BOLTS AND NUTS ZINC ELECTROPLATED
pipe_size_accommodated1.000 INCHES NOMINAL IN
working_pressure_rating1000.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
end_type_for_which_designedGROOVED
tube_outside_diameter_for_which_designed1.315 INCHES NOMINAL IN
NSN4730-01-186-3778
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 77E1IN · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL: RUBBER SYNTHETIC GASKET
•
PIPE SIZE ACCOMMODATED: 1.000 INCHES NOMINAL IN
•
SEGMENT QUANTITY: 2
•
END TYPE FOR WHICH DESIGNED: GROOVED
•
WORKING PRESSURE RATING: 1000.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 1.315 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER SYNTHETIC GASKET
PIPE SIZE ACCOMMODATED1.000 INCHES NOMINAL IN
SEGMENT QUANTITY2
MATERIALIRON MALLEABLE HOUSING
END TYPE FOR WHICH DESIGNEDGROOVED
WORKING PRESSURE RATING1000.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
SPECIAL FEATURESW/BOLTS AND NUTS ZINC ELECTROPLATED
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED1.315 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
77A1-1/2INInterchangeable
interchangeable cross-reference
interchangeable
1025-30108 PC8Interchangeable
interchangeable cross-reference
interchangeable
77A1-1-2Interchangeable
interchangeable cross-reference
interchangeable
MIL-C-10387Interchangeable
interchangeable cross-reference
interchangeable
MILC10387BInterchangeable
interchangeable cross-reference
interchangeable
100SERIES4INGR00VETYPE2BUTYLInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 77E1IN?
77E1IN is a COUPLING,CLAMP,PIPE.
What parts can replace 77E1IN?
There are 22 known substitutes for 77E1IN: 77A1-1/2IN, 1025-30108 PC8, 77A1-1-2 and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 77E1IN?
77E1IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-186-3778. 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