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265803 — PISTON,PUMP

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

265803: PISTON,PUMP.

The PISTON,PUMP is a the manufacturer industrial component. Key specifications include diameter: 1.250 INCHES NOMINAL IN, material: STEEL, overall_height: 2.210 INCHES NOMINAL IN, end_item_identification: VICKERS PUMP MODEL PVB29. This part is cataloged in the U.S.

Government catalog under NSN 4320-01-279-4649, 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
265803
NSN: 4320-01-279-4649
FSC: 4320 — Power and Hand Pumps
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
diameter1.250 INCHES NOMINAL IN
materialSTEEL
overall_height2.210 INCHES NOMINAL IN
end_item_identificationVICKERS PUMP MODEL PVB29
NSN4320-01-279-4649
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PISTON,PUMP TITLE COMPONENT PN 265803 MFR PISTON,PUMP
KEY FEATURES
•
DIAMETER: 1.250 INCHES NOMINAL IN
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT2.210 INCHES NOMINAL IN
DIAMETER1.250 INCHES NOMINAL IN
END ITEM IDENTIFICATIONVICKERS PUMP MODEL PVB29
MATERIALSTEEL
OTHER ITEMS IN FSC 4320 — Power and Hand Pumps
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4320-00-001-1633 4320-00-001-2628 4320-00-001-2629 4320-00-001-2630 4320-00-001-2631 4320-00-001-2632 4320-00-001-3377 4320-00-001-3384
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 265803?
265803 is a PISTON,PUMP.
What is the NSN for 265803?
265803 is cataloged in the U.S. Government catalog under NSN 4320-01-279-4649. 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.