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Technical Data Sheet
PartsTable / COMPONENT / 1M841H
1M841H ✓ 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,PIPE is a the manufacturer industrial component. Key specifications include material: PLASTIC OVERALL, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, style_designator: THREADED INTERNAL, operating_pressure: 470.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, nominal_thread_size: 1.500 INCHES ALL ENDS IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-861-8474, 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
1M841H
NSN: 4730-00-861-8474
FSC: 4730
CAGE: 93908 — CARLON A LAMSON AND SESSIONS CO (USA)
SPECIFICATIONS
materialPLASTIC OVERALL
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
style_designatorTHREADED INTERNAL
operating_pressure470.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size1.500 INCHES ALL ENDS IN
maximum_operating_temp23.0 CELSIUS SINGLE RESPONSE DEGC
nominal_overall_length3.000 INCHES IN
media_for_which_designedLIQUID, INGESTED SINGLE RESPONSE
thread_series_designatorNPT ALL ENDS
material_document_and_classificationASTM D2464 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
pipe_wall_thickness_designation_for_which_designedSCHEDULE 40 ALL ENDS
NSN4730-00-861-8474
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1M841H · 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
•
PIPE WALL THICKNESS DESIGNATION FOR WHICH DESIGNED: SCHEDULE 40 ALL ENDS
•
MEDIA FOR WHICH DESIGNED: LIQUID, INGESTED SINGLE RESPONSE
•
NOMINAL OVERALL LENGTH: 3.000 INCHES IN
•
NOMINAL THREAD SIZE: 1.500 INCHES ALL ENDS IN
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D2464 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MAXIMUM OPERATING TEMP: 23.0 CELSIUS SINGLE RESPONSE DEGC
TECHNICAL CHARACTERISTICS (FLIS)
PIPE WALL THICKNESS DESIGNATION FOR WHICH DESIGNEDSCHEDULE 40 ALL ENDS
MEDIA FOR WHICH DESIGNEDLIQUID, INGESTED SINGLE RESPONSE
NOMINAL OVERALL LENGTH3.000 INCHES IN
NOMINAL THREAD SIZE1.500 INCHES ALL ENDS IN
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D2464 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MAXIMUM OPERATING TEMP23.0 CELSIUS SINGLE RESPONSE DEGC
THREAD SERIES DESIGNATORNPT ALL ENDS
OPERATING PRESSURE470.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
01008008Interchangeable
interchangeable cross-reference
interchangeable
819-007Interchangeable
interchangeable cross-reference
interchangeable
0041130-007Interchangeable
interchangeable cross-reference
interchangeable
0021120-012Interchangeable
interchangeable cross-reference
interchangeable
8304Interchangeable
interchangeable cross-reference
interchangeable
801-012Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1M841H?
1M841H is a COUPLING,PIPE.
What parts can replace 1M841H?
There are 28 known substitutes for 1M841H: 01008008, 819-007, 0041130-007 and 25 more. Substitute compatibility should be verified for your specific system.
Is 1M841H still available?
1M841H 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