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ST1946-911 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

ST1946-911: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include center_hole_diameter: 0.854 INCHES MINIMUM AND 0.872 INCHES MAXIMUM IN, cross-sectional_height: 0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN, end_item_identification: C-17A AIRCRAFT A. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-540-0697, 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
ST1946-911
NSN: 5331-01-540-0697
FSC: 5331 — O-ring
CAGE: 1CN74 — FREUDENBERG-NOK GENERAL PARTNERSHIP DBA INTERNATIONAL SEAL CO INC (USA)
SPECIFICATIONS
center_hole_diameter0.854 INCHES MINIMUM AND 0.872 INCHES MAXIMUM IN
cross-sectional_height0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
end_item_identificationC-17A AIRCRAFT A
NSN5331-01-540-0697
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ST1946-911 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
KEY FEATURES
•
CROSS-SECTIONAL HEIGHT: 0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.854 INCHES MINIMUM AND 0.872 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.854 INCHES MINIMUM AND 0.872 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONC-17A AIRCRAFT A
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
7T0566-911Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST1946-911?
ST1946-911 is a O-RING.
What parts can replace ST1946-911?
There is 1 known substitute for ST1946-911: 7T0566-911. Substitute compatibility should be verified for your specific system.
What is the NSN for ST1946-911?
ST1946-911 is cataloged in the U.S. Government catalog under NSN 5331-01-540-0697. This indicates validated use in U.S. government and defense supply chains.
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