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6566-40-920-7101 — CROSS,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6566-40-920-7101: CROSS,TUBE TO BOSS.

The CROSS,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 7075 OVERALL, leg_length: 2.492 INCHES NOMINAL FIRST END IN, seat_angle: 12.0 DEGREES THIRD END, thread_class: 3A FIRST END BULKHEAD A, connection_type: THREADED EXTERNAL TUBE FIRST END BULKHEAD, connection_style: FLARELESS (TUBE) FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-141-2559, 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
6566-40-920-7101
NSN: 4730-01-141-2559
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 7075 OVERALL
leg_length2.492 INCHES NOMINAL FIRST END IN
seat_angle12.0 DEGREES THIRD END
thread_class3A FIRST END BULKHEAD A
connection_typeTHREADED EXTERNAL TUBE FIRST END BULKHEAD
connection_styleFLARELESS (TUBE) FIRST END
surface_treatmentANODIZE OVERALL
nominal_thread_size0.562 INCHES SECOND END IN
thread_quantity_per_inch12 THIRD END
thread_series_designatorUNIFIED NATIONAL JOINT (UNJ) THIRD END
nominal_outside_diameter_tube_accommodated0.750 INCHES FIRST END IN
NSN4730-01-141-2559
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6566-40-920-7101 · 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
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END BULKHEAD
TECHNICAL CHARACTERISTICS
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
CONNECTION STYLEFLARELESS (TUBE) THIRD END
CONNECTION STYLEFLARELESS (TUBE) FIRST END
CONNECTION STYLEGASKET SEAL (BOSS) FOURTH END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END BULKHEAD
CONNECTION TYPETHREADED EXTERNAL TUBE THIRD END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
CONNECTION TYPETHREADED INTERNAL BOSS FOURTH END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.750 INCHES THIRD END IN
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 1
65664-09207Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 6566-40-920-7101?
6566-40-920-7101 is a CROSS,TUBE TO BOSS.
What parts can replace 6566-40-920-7101?
There is 1 known substitute for 6566-40-920-7101: 65664-09207. Substitute compatibility should be verified for your specific system.
What is the NSN for 6566-40-920-7101?
6566-40-920-7101 is cataloged in the U.S. Government catalog under NSN 4730-01-141-2559. This indicates validated use in U.S. government and defense supply chains.
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