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PartsTable / COMPONENT / 4IN STYLE 78 W/GRADE E GASKET
4IN STYLE 78 W/GRADE E GASKET ✓ 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 4IN STYLE 78 W/GRADE E GASKET 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 4730-00-873-3864, 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
4IN STYLE 78 W/GRADE E GASKET
NSN: 4730-00-873-3864
FSC: 4730
CAGE: 79154 — VICTAULIC COMPANY OF AMERICA INC DBA VICTAULIC COMPANY OF AMERICA (USA)
SPECIFICATIONS
Part Number4IN STYLE 78 W/GRADE E GASKET
NSN4730-00-873-3864
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4IN STYLE 78 W/GRADE E GASKET · 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
•
SEGMENT QUANTITY: 2
•
MATERIAL: IRON HOUSING
•
PIPE SIZE ACCOMMODATED: 4.000 INCHES NOMINAL IN
•
WORKING PRESSURE RATING: 300.000 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
•
END TYPE FOR WHICH DESIGNED: GROOVED
TECHNICAL CHARACTERISTICS (FLIS)
SEGMENT QUANTITY2
MATERIALIRON HOUSING
MATERIALRUBBER SYNTHETIC GASKET
PIPE SIZE ACCOMMODATED4.000 INCHES NOMINAL IN
WORKING PRESSURE RATING300.000 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
END TYPE FOR WHICH DESIGNEDGROOVED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
784Interchangeable
interchangeable cross-reference
interchangeable
6144Interchangeable
interchangeable cross-reference
interchangeable
1708Interchangeable
interchangeable cross-reference
interchangeable
7000161PT10Interchangeable
interchangeable cross-reference
interchangeable
1JA2379H14Interchangeable
interchangeable cross-reference
interchangeable
M3220-22HTC1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4IN STYLE 78 W/GRADE E GASKET?
4IN STYLE 78 W/GRADE E GASKET is a 4IN STYLE 78 W/GRADE E GASKET.
What parts can replace 4IN STYLE 78 W/GRADE E GASKET?
There are 15 known substitutes for 4IN STYLE 78 W/GRADE E GASKET: 784, 6144, 1708 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4IN STYLE 78 W/GRADE E GASKET?
4IN STYLE 78 W/GRADE E GASKET is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-873-3864. 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