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6866164 — ELBOW,FLANGE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6866164: ELBOW,FLANGE.

The ELBOW,FLANGE is a the manufacturer industrial component. Key specifications include flow_angle: 24.0 DEGREES, flange_shape: OVAL WITH HOLES FIRST END, nominal_length: 3.280 INCHES FIRST END IN, connection_type: FLANGE ALL ENDS, special_features: ALL FOUR FLANGE HOLES 0.250-28 UNJF 3B RH THD, nominal_thickness: 0.350 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-181-8844, 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
6866164
NSN: 4730-00-181-8844
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 73342 — ALLISON TRANSMISSION INC DBA ALLISON TRANSMISSION, INC (USA)
SPECIFICATIONS
flow_angle24.0 DEGREES
flange_shapeOVAL WITH HOLES FIRST END
nominal_length3.280 INCHES FIRST END IN
connection_typeFLANGE ALL ENDS
special_featuresALL FOUR FLANGE HOLES 0.250-28 UNJF 3B RH THD
nominal_thickness0.350 INCHES FIRST END IN
bolt_hole_quantity2 FIRST END
flange_face_designPLAIN FIRST END
end_item_identificationFUEL HEATER
bolt_hole_nominal_diameter0.219 INCHES FIRST END IN
bolt_circle_nominal_diameter2.425 INCHES FIRST END IN
NSN4730-00-181-8844
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6866164 · 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
•
FLANGE SHAPE: OVAL WITH HOLES FIRST END
•
FLOW ANGLE: 24.0 DEGREES
•
FLANGE FACE DESIGN: PLAIN FIRST END
•
NOMINAL LENGTH: 3.280 INCHES FIRST END IN
•
BOLT CIRCLE NOMINAL DIAMETER: 2.425 INCHES FIRST END IN
•
CONNECTION TYPE: FLANGE ALL ENDS
•
BOLT HOLE NOMINAL DIAMETER: 0.219 INCHES FIRST END IN
•
BOLT HOLE QUANTITY: 2 FIRST END
TECHNICAL CHARACTERISTICS
FLANGE SHAPEOVAL WITH HOLES FIRST END
FLOW ANGLE24.0 DEGREES
FLANGE FACE DESIGNPLAIN FIRST END
NOMINAL LENGTH3.280 INCHES FIRST END IN
BOLT CIRCLE NOMINAL DIAMETER2.425 INCHES FIRST END IN
CONNECTION TYPEFLANGE ALL ENDS
BOLT HOLE NOMINAL DIAMETER0.219 INCHES FIRST END IN
BOLT HOLE QUANTITY2 FIRST END
SPECIAL FEATURESALL FOUR FLANGE HOLES 0.250-28 UNJF 3B RH THD
END ITEM IDENTIFICATIONFUEL HEATER
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6866164?
6866164 is a ELBOW,FLANGE.
What is the NSN for 6866164?
6866164 is cataloged in the U.S. Government catalog under NSN 4730-00-181-8844. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.