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Technical Data Sheet
PartsTable / COMPONENT / 8C3-4
8C3-4 ✓ 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 VALVE,VACUUM BREAKING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, end_item_identification: 4110-01-534-7675, media_for_which_designed: WATER, FRESH. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-868-5192, 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
8C3-4
NSN: 4730-00-868-5192
FSC: 4730
CAGE: 28960 — ITT FLUID TECHNOLOGY CORP ITT MCDONNELL AND MILLER (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
end_item_identification4110-01-534-7675
media_for_which_designedWATER, FRESH
NSN4730-00-868-5192
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 8C3-4 · 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
•
THREAD DIRECTION: RIGHT-HAND BOTH INLET AND OUTLET
•
RATED CAPACITY AT MAXIMUM WORKING PRESSURE: 50.000 POUNDS OF WATER PER HOUR LBS
•
SCREW THREAD SERIES DESIGNATOR: NPT BOTH INLET AND OUTLET
•
BODY DESIGN: ANGLE PATTERN
•
OUTLET CONNECTION TYPE: GROUND JOINT TAILPIECE W/UNION NUT AND FEMALE IRON PIPE
•
MAXIMUM STEAM WORKING PRESSURE: ERR-060
•
RADIATING SURFACE AREA ON WHICH CAPACITY IS BASED: 200.0 SQUARE FEET
•
WATER CAPACITY PER HOUR: 50.0 POUNDS LBS
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND BOTH INLET AND OUTLET
RATED CAPACITY AT MAXIMUM WORKING PRESSURE50.000 POUNDS OF WATER PER HOUR LBS
SCREW THREAD SERIES DESIGNATORNPT BOTH INLET AND OUTLET
BODY DESIGNANGLE PATTERN
OUTLET CONNECTION TYPEGROUND JOINT TAILPIECE W/UNION NUT AND FEMALE IRON PIPE
MAXIMUM STEAM WORKING PRESSUREERR-060
RADIATING SURFACE AREA ON WHICH CAPACITY IS BASED200.0 SQUARE FEET
WATER CAPACITY PER HOUR50.0 POUNDS LBS
MATERIALCOPPER ALLOY BODY
MATERIALCOPPER ALLOY WORKING PARTS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
8CInterchangeable
interchangeable cross-reference
interchangeable
Q8 CInterchangeable
interchangeable cross-reference
interchangeable
5130-00-172-3418Interchangeable
interchangeable cross-reference
interchangeable
T20-70TInterchangeable
interchangeable cross-reference
interchangeable
801814-8FInterchangeable
interchangeable cross-reference
interchangeable
CA32S55-0133PC1-2-6T08Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8C3-4?
8C3-4 is a VALVE,VACUUM BREAKING.
What parts can replace 8C3-4?
There are 17 known substitutes for 8C3-4: 8C, Q8 C, 5130-00-172-3418 and 14 more. Substitute compatibility should be verified for your specific system.
Is 8C3-4 still available?
8C3-4 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