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490190 ✓ 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

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: DOUBLE HEXAGON W/HOLE, head_height: 0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN, surface_finish: 32.0 MICROINCHES THREADS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-287-0706, 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
490190
NSN: 4730-00-287-0706
FSC: 4730
CAGE: 72741 — DORMAN PRODUCTS, INC. DBA DORMAN (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleDOUBLE HEXAGON W/HOLE
head_height0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
thread_class3A A
thread_length0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES THREADS
fastener_length0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN
hardness_rating30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
width_between_flats0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
nominal_thread_diameter0.250 INCHES IN
NSN4730-00-287-0706
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 490190 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
11091Interchangeable
interchangeable cross-reference
interchangeable
5203HInterchangeable
interchangeable cross-reference
interchangeable
7410028Interchangeable
interchangeable cross-reference
interchangeable
N11091Interchangeable
interchangeable cross-reference
interchangeable
2-12942Interchangeable
interchangeable cross-reference
interchangeable
U3236-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 490190?
490190 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace 490190?
There are 20 known substitutes for 490190: 11091, 5203H, 7410028 and 17 more. Substitute compatibility should be verified for your specific system.
Is 490190 still available?
490190 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