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Technical Data Sheet
PartsTable / COMPONENT / MS14311-7
MS14311-7 ✓ 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 TEE,PIPE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, leg_length: 1.940 INCHES NOMINAL ALL ENDS IN, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, special_features: ALL THREAD DIRECTIONS R-H, operating_pressure: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-263-5255, 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
MS14311-7
NSN: 4730-00-263-5255
FSC: 4730
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
leg_length1.940 INCHES NOMINAL ALL ENDS IN
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
special_featuresALL THREAD DIRECTIONS R-H
operating_pressure250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
nominal_thread_size1.500 INCHES ALL ENDS IN
maximum_operating_temp65.6 CELSIUS SECOND RESPONSE DEGC
end_item_identificationMULTIPLE APPLICATION
media_for_which_designedSTEAM FIRST RESPONSE
thread_series_designatorNPT ALL ENDS
nondefinitive_spec/std_dataB CLASS AND 2 RATING
NSN4730-00-263-5255
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS14311-7 · 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
•
NONDEFINITIVE SPEC/STD DATA: B CLASS AND 2 RATING
•
NOMINAL THREAD SIZE: 1.500 INCHES ALL ENDS IN
•
MEDIA FOR WHICH DESIGNED: WATER-OIL-GAS SECOND RESPONSE
•
OPERATING PRESSURE: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
•
MAXIMUM OPERATING TEMP: 65.6 CELSIUS SECOND RESPONSE DEGC
•
SPECIFICATION/STANDARD DATA: 81348-WW-P-460 GOVERNMENT SPECIFICATION
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESALL THREAD DIRECTIONS R-H
NONDEFINITIVE SPEC/STD DATAB CLASS AND 2 RATING
NOMINAL THREAD SIZE1.500 INCHES ALL ENDS IN
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDSTEAM FIRST RESPONSE
OPERATING PRESSURE250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
MAXIMUM OPERATING TEMP65.6 CELSIUS SECOND RESPONSE DEGC
SPECIFICATION/STANDARD DATA81348-WW-P-460 GOVERNMENT SPECIFICATION
MATERIALCOPPER ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B61 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
MS14311Interchangeable
interchangeable cross-reference
interchangeable
WW-P-460Interchangeable
interchangeable cross-reference
interchangeable
44393Interchangeable
interchangeable cross-reference
interchangeable
MS14311-1R-PWInterchangeable
interchangeable cross-reference
interchangeable
EE35937Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS14311-7?
MS14311-7 is a TEE,PIPE.
What parts can replace MS14311-7?
There are 5 known substitutes for MS14311-7: MS14311, WW-P-460, 44393 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS14311-7?
MS14311-7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-263-5255. 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