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Technical Data Sheet
PartsTable / COMPONENT / 77D2 1-2
77D2 1-2 ✓ 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: IRON MALLEABLE HOUSING, special_features: STEEL BOLTS AND NUTS CADMIUM PLATED, pipe_size_accommodated: 2.500 INCHES NOMINAL IN, working_pressure_rating: 1000.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS, end_type_for_which_designed: GROOVED, nondefinitive_spec/std_data: 1 TYPE AND 2-1/2 SIZE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-203-3615, 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
77D2 1-2
NSN: 4730-00-203-3615
FSC: 4730
CAGE: 79154 — VICTAULIC COMPANY OF AMERICA INC DBA VICTAULIC COMPANY OF AMERICA (USA)
SPECIFICATIONS
materialIRON MALLEABLE HOUSING
segment_quantity2
special_featuresSTEEL BOLTS AND NUTS CADMIUM PLATED
pipe_size_accommodated2.500 INCHES NOMINAL IN
working_pressure_rating1000.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
end_type_for_which_designedGROOVED
nondefinitive_spec/std_data1 TYPE AND 2-1/2 SIZE
NSN4730-00-203-3615
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 77D2 1-2 · 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
•
END TYPE FOR WHICH DESIGNED: GROOVED
•
MATERIAL: IRON MALLEABLE HOUSING
•
SEGMENT QUANTITY: 2
•
PIPE SIZE ACCOMMODATED: 2.500 INCHES NOMINAL IN
•
WORKING PRESSURE RATING: 1000.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 2-1/2 SIZE
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESSTEEL BOLTS AND NUTS CADMIUM PLATED
END TYPE FOR WHICH DESIGNEDGROOVED
MATERIALIRON MALLEABLE HOUSING
SEGMENT QUANTITY2
PIPE SIZE ACCOMMODATED2.500 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC GASKET
WORKING PRESSURE RATING1000.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 2-1/2 SIZE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
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
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 77D2 1-2?
77D2 1-2 is a COUPLING,CLAMP,PIPE.
What parts can replace 77D2 1-2?
There are 28 known substitutes for 77D2 1-2: 77A1-1/2IN, 1025-30108 PC8, 77A1-1-2 and 25 more. Substitute compatibility should be verified for your specific system.
Is 77D2 1-2 still available?
77D2 1-2 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