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Technical Data Sheet
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A26-256VA — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A26-256VA: O-RING.

The O-RING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-01-168-5091, 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
A26-256VA
NSN: 5331-01-168-5091
FSC: 5331 — O-ring
CAGE: 91940 — ORTMAN FLUID POWER QUINCY COMPRESSOR DIV SUB OF COLTEC INDUSTRIES INC (USA)
SPECIFICATIONS
Part NumberA26-256VA
NSN5331-01-168-5091
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A26-256VA MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
SUBSTITUTES & CROSS-REFERENCES 1
256-19359Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 A26-256VA?
A26-256VA is a O-RING.
What parts can replace A26-256VA?
There is 1 known substitute for A26-256VA: 256-19359. Substitute compatibility should be verified for your specific system.
What is the NSN for A26-256VA?
A26-256VA is cataloged in the U.S. Government catalog under NSN 5331-01-168-5091. This indicates validated use in U.S. government and defense supply chains.
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