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Technical Data Sheet
PartsTable / COMPONENT / 490-125
490-125 ✓ 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 CLUTCH,MAGNETIC,NONVEHICULAR is a the manufacturer industrial component. Key specifications include drive_type: SINGLE FRICTION FACE, overall_length: 3.125 INCHES NOMINAL IN, torque_capacity: 50.000 FOOT-POUNDS MAXIMUM FT, overall_diameter: 3.625 INCHES NOMINAL IN, field_hub_bore_diameter: 1.000 INCHES NOMINAL IN, armature_hub_bore_diameter: 1.000 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-277-8289, 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
490-125
NSN: 4730-00-277-8289
FSC: 4730
CAGE: 72741 — DORMAN PRODUCTS, INC. DBA DORMAN (USA)
SPECIFICATIONS
drive_typeSINGLE FRICTION FACE
overall_length3.125 INCHES NOMINAL IN
torque_capacity50.000 FOOT-POUNDS MAXIMUM FT
overall_diameter3.625 INCHES NOMINAL IN
field_hub_bore_diameter1.000 INCHES NOMINAL IN
armature_hub_bore_diameter1.000 INCHES NOMINAL IN
NSN4730-00-277-8289
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 490-125 · 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 26
3875Interchangeable
interchangeable cross-reference
interchangeable
30J05Interchangeable
interchangeable cross-reference
interchangeable
77059R91Interchangeable
interchangeable cross-reference
interchangeable
14344Interchangeable
interchangeable cross-reference
interchangeable
B94.9 9/16-12 UNC LH HS G H3Interchangeable
interchangeable cross-reference
interchangeable
GGG-T-70 TY1SEASTCInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 490-125?
490-125 is a CLUTCH,MAGNETIC,NONVEHICULAR.
What parts can replace 490-125?
There are 26 known substitutes for 490-125: 3875, 30J05, 77059R91 and 23 more. Substitute compatibility should be verified for your specific system.
Is 490-125 still available?
490-125 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