PartsTable
Technical Data Sheet

8C 3/4 — VALVE,VACUUM BREAKING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

8C 3/4: VALVE,VACUUM BREAKING.

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 U.S.

Government catalog 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
8C 3/4
NSN: 4730-00-868-5192
NIINs: 008685192, 015851204
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
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: 8C 3/4 · 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
•
WATER CAPACITY PER HOUR: 50.0 POUNDS LBS
•
DESIGN TYPE: THERMOSTATIC
•
INLET CONNECTION TYPE: GROUND JOINT TAILPIECE W/UNION NUT AND FEMALE IRON PIPE
•
THREAD DIRECTION: RIGHT-HAND BOTH INLET AND OUTLET
•
RADIATING SURFACE AREA ON WHICH CAPACITY IS BASED: 200.0 SQUARE FEET
•
MAXIMUM STEAM WORKING PRESSURE: ERR-060
•
SCREW THREAD SERIES DESIGNATOR: NPT BOTH INLET AND OUTLET
•
BODY DESIGN: ANGLE PATTERN
TECHNICAL CHARACTERISTICS
WATER CAPACITY PER HOUR50.0 POUNDS LBS
DESIGN TYPETHERMOSTATIC
INLET CONNECTION TYPEGROUND JOINT TAILPIECE W/UNION NUT AND FEMALE IRON PIPE
THREAD DIRECTIONRIGHT-HAND BOTH INLET AND OUTLET
RADIATING SURFACE AREA ON WHICH CAPACITY IS BASED200.0 SQUARE FEET
MAXIMUM STEAM WORKING PRESSUREERR-060
SCREW THREAD SERIES DESIGNATORNPT BOTH INLET AND OUTLET
BODY DESIGNANGLE PATTERN
RATED CAPACITY AT MAXIMUM WORKING PRESSURE50.000 POUNDS OF WATER PER HOUR LBS
MATERIALCOPPER ALLOY BODY
SUBSTITUTES & CROSS-REFERENCES 2
H-25Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
8CSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 8C 3/4?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 8C 3/4?
8C 3/4 is a VALVE,VACUUM BREAKING.
What parts can replace 8C 3/4?
There are 2 known substitutes for 8C 3/4: H-25, 8C. Substitute compatibility should be verified for your specific system.
What is the NSN for 8C 3/4?
8C 3/4 is cataloged in the U.S. Government catalog under NSN 4730-00-868-5192. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 8C 3/4

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.