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PartsTable / COMPONENT / 10203-23
10203-23 ✓ Verified by PartsTable
3M · 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 3M industrial component. Key specifications include material: STEEL COMP 316 OVERALL, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: FLARED (TUBE) ALL ENDS, style_designator: STRAIGHT THRU, thread_direction: RIGHT-HAND ALL ENDS, operating_pressure: 4500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-585-6565, 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
10203-23
NSN: 4730-00-585-6565
FSC: 4730
CAGE: 65459 — LANDOLL COMPANY, LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 316 OVERALL
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARED (TUBE) ALL ENDS
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND ALL ENDS
operating_pressure4500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.250 INCHES ALL ENDS IN
maximum_operating_temp160.03 FAHRENHEIT SECOND RESPONSE DEGF
valve_operation_methodAUTOMATIC
media_for_which_designedWATER-OIL-GAS SINGLE RESPONSE
thread_series_designatorNPT ALL ENDS
material_document_and_classificationAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN4730-00-585-6565
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 10203-23 · 3M ⚠ 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
•
SURFACE TREATMENT: CADMIUM OVERALL
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.500 INCHES NOMINAL IN
•
THREAD CLASS: 2B INTERNAL
•
NOMINAL THREAD SIZE: 0.750 INCHES INTERNAL IN
•
THREAD SERIES DESIGNATOR: UNF INTERNAL
•
STYLE DESIGNATOR: CAP
•
THREAD DIRECTION: RIGHT-HAND INTERNAL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTCADMIUM OVERALL
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.500 INCHES NOMINAL IN
THREAD CLASS2B INTERNAL
NOMINAL THREAD SIZE0.750 INCHES INTERNAL IN
THREAD SERIES DESIGNATORUNF INTERNAL
STYLE DESIGNATORCAP
THREAD DIRECTIONRIGHT-HAND INTERNAL
MATERIALSTEEL OVERALL
SEAT ANGLE37.0 DEGREES
CONNECTION STYLEFLARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
06CP-6Interchangeable
interchangeable cross-reference
interchangeable
820X6Interchangeable
interchangeable cross-reference
interchangeable
13207E4702Interchangeable
interchangeable cross-reference
interchangeable
998-5417Interchangeable
interchangeable cross-reference
interchangeable
L100-29Interchangeable
interchangeable cross-reference
interchangeable
3591130-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 10203-23?
10203-23 is a ADAPTER,STRAIGHT,TUBE TO BOSS manufactured by 3M.
What parts can replace 10203-23?
There are 28 known substitutes for 10203-23: 06CP-6, 820X6, 13207E4702 and 25 more. Substitute compatibility should be verified for your specific system.
Is 10203-23 still available?
10203-23 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026