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191789 — COUPLING,FLEXIBLE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

191789: COUPLING,FLEXIBLE.

The COUPLING,FLEXIBLE is a the manufacturer industrial component. Key specifications include end_item_identification: PUMP ASSEMBLY. This part is cataloged in the U.S.

Government catalog under NSN 5355-00-680-1234, 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
191789
NSN: 5355-00-680-1234
NIINs: 006801234, 016454837
FSC: 5355 — Knobs and Pointers
CAGE: 37695 — RAYTHEON COMPANY (USA)
SPECIFICATIONS
end_item_identificationPUMP ASSEMBLY
NSN5355-00-680-1234
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COUPLING,FLEXIBLE TITLE COMPONENT PN 191789 MFR COUPLING,FLEXIBLE
KEY FEATURES
•
DISTANCE FROM HOLE CENTER TO KNOB/SKIRT BASE: 0.312 INCHES NOMINAL IN
•
SHAFT ACCOMMODATION STYLE: COUNTERBORED
•
OVERALL THICKNESS: 0.803 INCHES NOMINAL IN
•
SKIRT OUTSIDE DIAMETER: 1.135 INCHES NOMINAL IN
•
STYLE DESIGNATOR: TRIANGULAR
•
COUNTERBORE DEPTH: 0.125 INCHES NOMINAL IN
•
SETSCREW HOLE QUANTITY: 2
•
NOMINAL THREAD SIZE: 0.164 INCHES SCREW HOLE IN
TECHNICAL CHARACTERISTICS
DISTANCE FROM HOLE CENTER TO KNOB/SKIRT BASE0.312 INCHES NOMINAL IN
SHAFT ACCOMMODATION STYLECOUNTERBORED
OVERALL THICKNESS0.803 INCHES NOMINAL IN
SKIRT OUTSIDE DIAMETER1.135 INCHES NOMINAL IN
STYLE DESIGNATORTRIANGULAR
COUNTERBORE DEPTH0.125 INCHES NOMINAL IN
SETSCREW HOLE QUANTITY2
NOMINAL THREAD SIZE0.164 INCHES SCREW HOLE IN
COUNTERBORE DIAMETER0.554 INCHES NOMINAL IN
INSIDE DIAMETER0.252 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 191789?
191789 is a COUPLING,FLEXIBLE.
What is the NSN for 191789?
191789 is cataloged in the U.S. Government catalog under NSN 5355-00-680-1234. 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.