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3MJ-3MIF — NIPPLE,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

3MJ-3MIF: NIPPLE,TUBE.

The NIPPLE,TUBE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, seat_angle: 37.0 DEGREES ALL ENDS, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: INVERTED FLARE (TUBE) FIRST END, surface_treatment: ZINC OVERALL, nominal_thread_size: 0.375 INCHES ALL ENDS IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-558-7734, 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
3MJ-3MIF
NSN: 4730-01-558-7734
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0HZT9 — FITTING SOURCE, INC DBA FITTING SOURCE INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
seat_angle37.0 DEGREES ALL ENDS
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleINVERTED FLARE (TUBE) FIRST END
surface_treatmentZINC OVERALL
nominal_thread_size0.375 INCHES ALL ENDS IN
thread_series_designatorUNF ALL ENDS
part_name_assigned_by_controlling_agencyFITTING TUBE
nominal_outside_diameter_tube_accommodated0.188 INCHES ALL ENDS IN
NSN4730-01-558-7734
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3MJ-3MIF · 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: INVERTED FLARE (TUBE) FIRST END
•
CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.188 INCHES ALL ENDS IN
•
NOMINAL THREAD SIZE: 0.375 INCHES ALL ENDS IN
•
SEAT ANGLE: 37.0 DEGREES ALL ENDS
•
SURFACE TREATMENT: ZINC OVERALL
TECHNICAL CHARACTERISTICS
CONNECTION STYLEINVERTED FLARE (TUBE) FIRST END
CONNECTION STYLEFLARED (TUBE) SECOND END
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.188 INCHES ALL ENDS IN
NOMINAL THREAD SIZE0.375 INCHES ALL ENDS IN
SEAT ANGLE37.0 DEGREES ALL ENDS
SURFACE TREATMENTZINC OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYFITTING TUBE
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORUNF ALL ENDS
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3MJ-3MIF?
3MJ-3MIF is a NIPPLE,TUBE.
What is the NSN for 3MJ-3MIF?
3MJ-3MIF is cataloged in the U.S. Government catalog under NSN 4730-01-558-7734. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.