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Technical Data Sheet
PartsTable / COMPONENT / 810-841166SLEEVE
810-841166SLEEVE ✓ 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 COUPLING,TUBE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, connection_type: UNTHREADED INTERNAL TUBE ALL ENDS, connection_style: PLAIN (TUBE) ALL ENDS, special_features: FOR SALT WATER USE, style_designator: BEVELED BOTH ENDS, operating_pressure: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-542-3290, 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
810-841166SLEEVE
NSN: 4730-00-542-3290
FSC: 4730
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
connection_typeUNTHREADED INTERNAL TUBE ALL ENDS
connection_stylePLAIN (TUBE) ALL ENDS
special_featuresFOR SALT WATER USE
style_designatorBEVELED BOTH ENDS
operating_pressure200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
maximum_operating_temp150.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length1.313 INCHES IN
end_item_identification77F VEHICLE, AIRCRAFT REFUELER R-9
departure_from_cited_documentDIFFERENTIATED BY ITEM NAME AND OD TUBE SIZE
material_document_and_classificationMIL-T-16420 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
nominal_outside_diameter_tube_accommodated2.375 INCHES ALL ENDS IN
NSN4730-00-542-3290
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 810-841166SLEEVE · 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
•
MAXIMUM OPERATING TEMP: 150.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
CONNECTION STYLE: PLAIN (TUBE) ALL ENDS
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 2.375 INCHES ALL ENDS IN
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: AS MODIFIED BY TUBE SIZE
•
OPERATING PRESSURE: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-T-16420 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
STYLE DESIGNATOR: BEVELED BOTH ENDS
TECHNICAL CHARACTERISTICS (FLIS)
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT SINGLE RESPONSE DEGF
CONNECTION STYLEPLAIN (TUBE) ALL ENDS
SPECIAL FEATURESFOR SALT WATER USE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED2.375 INCHES ALL ENDS IN
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS MODIFIED BY TUBE SIZE
OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-T-16420 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATORBEVELED BOTH ENDS
CONNECTION TYPEUNTHREADED INTERNAL TUBE ALL ENDS
END ITEM IDENTIFICATION77F VEHICLE, AIRCRAFT REFUELER R-9
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
810-1385880Interchangeable
Same NIIN cross-reference
interchangeable
1385880 SLEEVE, 2IN CUNIInterchangeable
Same NIIN cross-reference
interchangeable
5000S4823-841166REV5SLEEVEInterchangeable
Same NIIN cross-reference
interchangeable
810-841166REV5SLEEVEInterchangeable
Same NIIN cross-reference
interchangeable
5000S4823-8411665SLEEVEInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 810-841166SLEEVE?
810-841166SLEEVE is a COUPLING,TUBE.
What parts can replace 810-841166SLEEVE?
There are 5 known substitutes for 810-841166SLEEVE: 810-1385880, 1385880 SLEEVE, 2IN CUNI, 5000S4823-841166REV5SLEEVE and 2 more. Substitute compatibility should be verified for your specific system.
Is 810-841166SLEEVE still available?
810-841166SLEEVE 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