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PWA81945 — WEIGHT,COUNTERBALANCE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

PWA81945: WEIGHT,COUNTERBALANCE.

The WEIGHT,COUNTERBALANCE is a the manufacturer industrial component. Key specifications include overall_length: 4.500 INCHES NOMINAL IN, outside_diameter: 4.100 INCHES NOMINAL IN, end_item_identification: F117-PW-100 ENGINE. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-407-2209, 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
PWA81945
NSN: 3040-01-407-2209
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
overall_length4.500 INCHES NOMINAL IN
outside_diameter4.100 INCHES NOMINAL IN
end_item_identificationF117-PW-100 ENGINE
NSN3040-01-407-2209
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available WEIGHT,COUNTERBALANCE TITLE COMPONENT PN PWA81945 MFR WEIGHT,COUNTERBALANCE
KEY FEATURES
•
OUTSIDE DIAMETER: 4.100 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER4.100 INCHES NOMINAL IN
OVERALL LENGTH4.500 INCHES NOMINAL IN
SPECIAL FEATURESTHIS BALANCING WEIGHT IS A PRECISION MACHINED CYLINDER WITH OUTER CONCENTRIC CYLINDERS AT EACH END.THESE OUTER CYLINDERS CAN BE GROUND FOR FINE TUNING THE CALIBRATION OF THE WEIGHT.THE INNER DIAMETER OF THE CYLINDER HAS TWO OPOSITE KEY SLOTS TO HOLD THE WEIGHT TO THE DRIVESHAFT
END ITEM IDENTIFICATIONF117-PW-100 ENGINE
OTHER ITEMS IN FSC 3040 — Miscellaneous Power Transmission Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3040-00-001-0046 3040-00-001-0047 3040-00-001-0048 3040-00-001-0068 3040-00-001-0077 3040-00-001-0078 3040-00-001-0089 3040-00-001-1224
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 PWA81945?
PWA81945 is a WEIGHT,COUNTERBALANCE.
What is the NSN for PWA81945?
PWA81945 is cataloged in the U.S. Government catalog under NSN 3040-01-407-2209. 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.