PartsTable
Technical Data Sheet
OM-66 ✓ 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 ADAPTER,STRAIGHT,HOSE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_class: 2A SECOND END A, connection_type: THREADED EXTERNAL BOSS SECOND END, connection_style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END, surface_treatment: CADMIUM OR ZINC OVERALL, nominal_thread_size: 0.562 INCHES SECOND END IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-027-4754, 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
OM-66
NSN: 4730-01-027-4754
FSC: 4730
CAGE: 99103 — FORMRITE TUBE CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class2A SECOND END A
connection_typeTHREADED EXTERNAL BOSS SECOND END
connection_styleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
surface_treatmentCADMIUM OR ZINC OVERALL
nominal_thread_size0.562 INCHES SECOND END IN
nominal_overall_length2.250 INCHES IN
thread_series_designatorUNF SECOND END
furnished_items_and_quantity1 PREFORMED PACKING
nominal_inside_diameter_hose_accommodated0.375 INCHES FIRST END IN
NSN4730-01-027-4754
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: OM-66 · 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
THREAD CLASS: 2A SECOND END A
CONNECTION TYPE: UNTHREADED EXTERNAL HOSE FIRST END
NOMINAL OVERALL LENGTH: 2.250 INCHES IN
CONNECTION STYLE: BEADED (HOSE) FIRST END
THREAD SERIES DESIGNATOR: UNF SECOND END
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.375 INCHES FIRST END IN
NOMINAL THREAD SIZE: 0.562 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2A SECOND END A
CONNECTION TYPEUNTHREADED EXTERNAL HOSE FIRST END
NOMINAL OVERALL LENGTH2.250 INCHES IN
CONNECTION STYLEBEADED (HOSE) FIRST END
THREAD SERIES DESIGNATORUNF SECOND END
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.375 INCHES FIRST END IN
NOMINAL THREAD SIZE0.562 INCHES SECOND END IN
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
MATERIALSTEEL OVERALL
FURNISHED ITEMS AND QUANTITY1 PREFORMED PACKING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
HD6556Interchangeable
interchangeable cross-reference
interchangeable
46046Interchangeable
interchangeable cross-reference
interchangeable
4-17406Interchangeable
interchangeable cross-reference
interchangeable
201988Interchangeable
interchangeable cross-reference
interchangeable
XM-36460-29-2000-O-LInterchangeable
interchangeable cross-reference
interchangeable
A826CInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is OM-66?
OM-66 is a ADAPTER,STRAIGHT,HOSE TO BOSS.
What parts can replace OM-66?
There are 12 known substitutes for OM-66: HD6556, 46046, 4-17406 and 9 more. Substitute compatibility should be verified for your specific system.
Is OM-66 still available?
OM-66 is currently cancelled.
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