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65B3-4 ✓ 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

CABLE ASSEMBLY,SPECIAL PURPOSE,E. Key specifications include phase: SINGLE INPUT, material: STEEL, head_type: SOLID, duty_cycle: CONTINUOUS, flow_angle: 90.0 DEGREES, leg_length: 1.750 INCHES NOMINAL ALL ENDS IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-187-7613, 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
65B3-4
NSN: 4730-00-187-7613
FSC: 4730
CAGE: 72000 — DRESSER INDUSTRIES INC DRESSER MFG DIV (USA)
SPECIFICATIONS
phaseSINGLE INPUT
materialSTEEL
head_typeSOLID
duty_cycleCONTINUOUS
flow_angle90.0 DEGREES
leg_length1.750 INCHES NOMINAL ALL ENDS IN
sweep_typeSHORT
power_rating1.000 HORSEPOWER OUTPUT
reducer_typeCONCENTRIC
furnished_dataLIQUID FLOW
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
NSN4730-00-187-7613
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 65B3-4 · 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
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
11509Interchangeable
interchangeable cross-reference
interchangeable
SC-B-69640Interchangeable
interchangeable cross-reference
interchangeable
497LXInterchangeable
interchangeable cross-reference
interchangeable
5050-3Interchangeable
interchangeable cross-reference
interchangeable
F124-208VInterchangeable
interchangeable cross-reference
interchangeable
50067Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 65B3-4?
65B3-4 is a CABLE ASSEMBLY,SPECIAL PURPOSE,E.
What parts can replace 65B3-4?
There are 17 known substitutes for 65B3-4: 11509, SC-B-69640, 497LX and 14 more. Substitute compatibility should be verified for your specific system.
Is 65B3-4 still available?
65B3-4 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