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Technical Data Sheet
PartsTable / COMPONENT / 0051120-040
0051120-040 ✓ 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: UNTHREADED INTERNAL PIPE ALL ENDSUNTHREADED INTERNAL PIPE ALL ENDS, connection_style: SOCKET (PIPE) ALL ENDSSOCKET (PIPE) ALL ENDS, style_designator: PLAINPLAIN, nominal_overall_length: 4.750 INCHES4.750 INCHES IN, nominal_pipe_size_accommodated: 4.000 INCHES ALL ENDS4.000 INCHES ALL ENDS IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-263-4197, 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
0051120-040
NSN: 4730-00-263-4197
FSC: 4730
CAGE: 54119 — CLEVELAND SERVICE CENTER (USA)
SPECIFICATIONS
materialPLASTIC OVERALL
connection_typeUNTHREADED INTERNAL PIPE ALL ENDSUNTHREADED INTERNAL PIPE ALL ENDS
connection_styleSOCKET (PIPE) ALL ENDSSOCKET (PIPE) ALL ENDS
style_designatorPLAINPLAIN
nominal_overall_length4.750 INCHES4.750 INCHES IN
nominal_pipe_size_accommodated4.000 INCHES ALL ENDS4.000 INCHES ALL ENDS IN
material_document_and_classificationASTM D1784,TY 1,GR1 ASSN STD SINGLE MATERIAL RESPONSE OVERALLASTM D1784,TY 1,GR1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
pipe_wall_thickness_designation_for_which_designedSCHEDULE 80 ALL ENDSSCHEDULE 80 ALL ENDS
NSN4730-00-263-4197
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 0051120-040 · 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
•
CONNECTION STYLE: SOCKET (PIPE) ALL ENDSSOCKET (PIPE) ALL ENDS
•
NOMINAL PIPE SIZE ACCOMMODATED: 4.000 INCHES ALL ENDS4.000 INCHES ALL ENDS IN
•
MATERIAL: PLASTIC OVERALL
•
PIPE WALL THICKNESS DESIGNATION FOR WHICH DESIGNED: SCHEDULE 80 ALL ENDSSCHEDULE 80 ALL ENDS
•
STYLE DESIGNATOR: PLAINPLAIN
•
NOMINAL OVERALL LENGTH: 4.750 INCHES4.750 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D1784,TY 1,GR1 ASSN STD SINGLE MATERIAL RESPONSE OVERALLASTM D1784,TY 1,GR1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CONNECTION TYPE: UNTHREADED INTERNAL PIPE ALL ENDSUNTHREADED INTERNAL PIPE ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLESOCKET (PIPE) ALL ENDSSOCKET (PIPE) ALL ENDS
NOMINAL PIPE SIZE ACCOMMODATED4.000 INCHES ALL ENDS4.000 INCHES ALL ENDS IN
MATERIALPLASTIC OVERALL
PIPE WALL THICKNESS DESIGNATION FOR WHICH DESIGNEDSCHEDULE 80 ALL ENDSSCHEDULE 80 ALL ENDS
STYLE DESIGNATORPLAINPLAIN
NOMINAL OVERALL LENGTH4.750 INCHES4.750 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D1784,TY 1,GR1 ASSN STD SINGLE MATERIAL RESPONSE OVERALLASTM D1784,TY 1,GR1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDSUNTHREADED INTERNAL PIPE ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
8510Interchangeable
interchangeable cross-reference
interchangeable
D2467Interchangeable
interchangeable cross-reference
interchangeable
01001007Interchangeable
interchangeable cross-reference
interchangeable
ASTM D2467Interchangeable
interchangeable cross-reference
interchangeable
1946-1008REV3PT8Interchangeable
interchangeable cross-reference
interchangeable
H1030Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 0051120-040?
0051120-040 is a COUPLING,PIPE.
What parts can replace 0051120-040?
There are 26 known substitutes for 0051120-040: 8510, D2467, 01001007 and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 0051120-040?
0051120-040 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-263-4197. 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