PartsTable
Technical Data Sheet
202123-18-16B ✓ 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,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, thread_class: 2A SECOND END A, connection_type: UNTHREADED INTERNAL TUBE FIRST END, connection_style: PLAIN (TUBE) FIRST END, nominal_thread_size: 1.312 INCHES SECOND END IN, nominal_overall_length: 2.030 INCHES 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 4730-01-092-1685, 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
202123-18-16B
NSN: 4730-01-092-1685
FSC: 4730
CAGE: 01276 — DANFOSS POWER SOLUTIONS II, LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
thread_class2A SECOND END A
connection_typeUNTHREADED INTERNAL TUBE FIRST END
connection_stylePLAIN (TUBE) FIRST END
nominal_thread_size1.312 INCHES SECOND END IN
nominal_overall_length2.030 INCHES IN
thread_quantity_per_inch12 SECOND END
thread_series_designatorUN SECOND END
furnished_items_and_quantity1 PREFORMED PACKING
nominal_outside_diameter_tube_accommodated1.125 INCHES FIRST END IN
NSN4730-01-092-1685
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 202123-18-16B · 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: PLAIN (TUBE) FIRST END
CONNECTION TYPE: UNTHREADED INTERNAL TUBE FIRST END
FURNISHED ITEMS AND QUANTITY: 1 PREFORMED PACKING
NOMINAL OVERALL LENGTH: 2.030 INCHES IN
THREAD CLASS: 2A SECOND END A
THREAD QUANTITY PER INCH: 12 SECOND END
NOMINAL THREAD SIZE: 1.312 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLEPLAIN (TUBE) FIRST END
CONNECTION TYPEUNTHREADED INTERNAL TUBE FIRST END
FURNISHED ITEMS AND QUANTITY1 PREFORMED PACKING
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
NOMINAL OVERALL LENGTH2.030 INCHES IN
THREAD CLASS2A SECOND END A
THREAD QUANTITY PER INCH12 SECOND END
NOMINAL THREAD SIZE1.312 INCHES SECOND END IN
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.125 INCHES FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
1623410-89Interchangeable
interchangeable cross-reference
interchangeable
880093Interchangeable
interchangeable cross-reference
interchangeable
700180Interchangeable
interchangeable cross-reference
interchangeable
202123Interchangeable
interchangeable cross-reference
interchangeable
17-00-6386Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 202123-18-16B?
202123-18-16B is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace 202123-18-16B?
There are 5 known substitutes for 202123-18-16B: 1623410-89, 880093, 700180 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 202123-18-16B?
202123-18-16B is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-092-1685. This indicates validated use in U.S. government and defense supply chains.
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