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189680 — ADAPTER BUSHING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

189680: ADAPTER BUSHING.

The ADAPTER BUSHING is a the manufacturer industrial component. Key specifications include depth: 0.109 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, diameter: 1.469 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, material: STEEL, thickness: 0.250 INCHES NOMINAL IN, overall_length: 0.625 INCHES NOMINAL IN, surface_treatment: CADMIUM. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-346-1497, 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
189680
NSN: 4730-00-346-1497
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 7EK50 — TEXTRON AVIATION INC (USA)
SPECIFICATIONS
depth0.109 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
diameter1.469 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
materialSTEEL
thickness0.250 INCHES NOMINAL IN
overall_length0.625 INCHES NOMINAL IN
surface_treatmentCADMIUM
width_across_flats2.000 INCHES NOMINAL IN
chamfer_angle_in_deg90.000 LOCATION NOT OTHERWISE SPECIFIED
male_end_thread_size1.875 IN.-20 IN
male_end_thread_class2A A
female_end_thread_size1-1/4 IN. -11-1/2 IN
male_end_thread_length0.344 INCHES NOMINAL IN
NSN4730-00-346-1497
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 189680 · 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
•
WIDTH ACROSS FLATS: 2.000 INCHES NOMINAL IN
•
FEMALE END CHARACTERISTIC: COUNTERSUNK
•
COUNTERBORE/COUNTERSINK LOCATION: AT WRENCHING HEAD END
•
MALE END THREAD SIZE: 1.875 IN.-20 IN
•
FEMALE END THREAD LENGTH: 0.625 INCHES NOMINAL IN
•
DIAMETER: 1.469 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
MALE END THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS2.000 INCHES NOMINAL IN
FEMALE END CHARACTERISTICCOUNTERSUNK
COUNTERBORE/COUNTERSINK LOCATIONAT WRENCHING HEAD END
MALE END THREAD SIZE1.875 IN.-20 IN
FEMALE END THREAD LENGTH0.625 INCHES NOMINAL IN
DIAMETER1.469 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
OVERALL LENGTH0.625 INCHES NOMINAL IN
MALE END THREAD DIRECTIONRIGHT-HAND
FEMALE END THREAD SIZE1-1/4 IN. -11-1/2 IN
WRENCHING FACILITY SHAPEHEXAGON
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 189680?
189680 is a ADAPTER BUSHING.
What is the NSN for 189680?
189680 is cataloged in the U.S. Government catalog under NSN 4730-00-346-1497. 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.