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Technical Data Sheet
PartsTable / COMPONENT / 0M-20-90
0M-20-90 ✓ 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 ELBOW,HOSE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, flow_angle: 90.0 DEGREES, leg_length: 3.625 INCHES NOMINAL SECOND END IN, thread_class: 2A SECOND END A, connection_type: THREADED EXTERNAL BOSS SECOND END, connection_style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-016-1383, 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
0M-20-90
NSN: 4730-01-016-1383
FSC: 4730
CAGE: 99103 — FORMRITE TUBE CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
flow_angle90.0 DEGREES
leg_length3.625 INCHES NOMINAL SECOND END IN
thread_class2A SECOND END A
connection_typeTHREADED EXTERNAL BOSS SECOND END
connection_styleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
surface_treatmentZINC OVERALL
nominal_thread_size1.625 INCHES SECOND END IN
thread_quantity_per_inch12 SECOND END
thread_series_designatorUN SECOND END
furnished_items_and_quantity1 PREFORMED PACKING AND 1 FLAT WASHER
nominal_inside_diameter_hose_accommodated1.250 INCHES FIRST END IN
NSN4730-01-016-1383
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 0M-20-90 · 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
•
FURNISHED ITEMS AND QUANTITY: 1 PREFORMED PACKING AND 1 FLAT WASHER
•
THREAD SERIES DESIGNATOR: UN SECOND END
•
CONNECTION TYPE: UNTHREADED EXTERNAL HOSE FIRST END
•
CONNECTION STYLE: BEADED (HOSE) FIRST END
•
THREAD CLASS: 2A SECOND END A
•
THREAD QUANTITY PER INCH: 12 SECOND END
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 1.250 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS (FLIS)
FURNISHED ITEMS AND QUANTITY1 PREFORMED PACKING AND 1 FLAT WASHER
THREAD SERIES DESIGNATORUN SECOND END
CONNECTION TYPEUNTHREADED EXTERNAL HOSE FIRST END
CONNECTION STYLEBEADED (HOSE) FIRST END
THREAD CLASS2A SECOND END A
THREAD QUANTITY PER INCH12 SECOND END
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED1.250 INCHES FIRST END IN
FLOW ANGLE90.0 DEGREES
SURFACE TREATMENTZINC OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
20905Interchangeable
interchangeable cross-reference
interchangeable
20905JDInterchangeable
interchangeable cross-reference
interchangeable
8495538Interchangeable
interchangeable cross-reference
interchangeable
564087Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 0M-20-90?
0M-20-90 is a ELBOW,HOSE TO BOSS.
What parts can replace 0M-20-90?
There are 4 known substitutes for 0M-20-90: 20905, 20905JD, 8495538 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 0M-20-90?
0M-20-90 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-016-1383. 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