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Technical Data Sheet
PartsTable / COMPONENT / 33-11P
33-11P ✓ 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 TAILPIECE,UNION is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 360, seat_type: GASKET, thread_size: 0.250-18, overall_length: 1.375 INCHES NOMINAL IN, flange_thickness: 0.187 INCHES NOMINAL IN, special_features: W/O.312-24UNF-2B THDS 0.375 @DEEP ON UNION END. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-023-1207, 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
33-11P
NSN: 4730-01-023-1207
FSC: 4730
CAGE: 13627 — CRYO-CHEM INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY 360
seat_typeGASKET
thread_size0.250-18
overall_length1.375 INCHES NOMINAL IN
flange_thickness0.187 INCHES NOMINAL IN
special_featuresW/O.312-24UNF-2B THDS 0.375 @DEEP ON UNION END
thread_directionRIGHT-HAND
end_connection_typeTHREADED
screw_thread_locationEXTERNAL
flange_outside_diameter0.750 INCHES NOMINAL IN
screw_thread_series_designatorNPS
working_pressure_and_service_type3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL GAS LBS
NSN4730-01-023-1207
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 33-11P · 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 SIZE: 0.250-18
•
FLANGE OUTSIDE DIAMETER: 0.750 INCHES NOMINAL IN
•
END CONNECTION TYPE: THREADED
•
WORKING PRESSURE AND SERVICE TYPE: 3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL GAS LBS
•
SCREW THREAD LOCATION: EXTERNAL
•
SEAT TYPE: GASKET
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SIZE0.250-18
OVERALL LENGTH1.375 INCHES NOMINAL IN
FLANGE OUTSIDE DIAMETER0.750 INCHES NOMINAL IN
END CONNECTION TYPETHREADED
WORKING PRESSURE AND SERVICE TYPE3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL GAS LBS
SCREW THREAD LOCATIONEXTERNAL
SEAT TYPEGASKET
SPECIAL FEATURESW/O.312-24UNF-2B THDS 0.375 @DEEP ON UNION END
MATERIALCOPPER ALLOY 360
SCREW THREAD SERIES DESIGNATORNPS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
3311AInterchangeable
interchangeable cross-reference
interchangeable
55635Interchangeable
interchangeable cross-reference
interchangeable
003311AInterchangeable
interchangeable cross-reference
interchangeable
HP3311AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 33-11P?
33-11P is a TAILPIECE,UNION.
What parts can replace 33-11P?
There are 4 known substitutes for 33-11P: 3311A, 55635, 003311A and 1 more. Substitute compatibility should be verified for your specific system.
Is 33-11P still available?
33-11P 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