Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW
The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM, hardness_rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM, center_hole_diameter: 0.419 INCHES MINIMUM AND 0.429 INCHES MAXIMUM IN, cross-sectional_height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN, material_document_and_classification: MIL-R-83451/1 MIL SPEC SINGLE MATERIAL RESPONSE. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-485-6435, 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
ST1946-111
NSN:5331-01-485-6435 FSC:5331 — O-RING CAGE:1CN74 — FREUDENBERG-NOK GENERAL PARTNERSHIP DBA INTERNATIONAL SEAL CO INC (USA)
SPECIFICATIONS
material
RUBBER FLUOROCARBON CLASS FPM
hardness_rating
70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM
center_hole_diameter
0.419 INCHES MINIMUM AND 0.429 INCHES MAXIMUM IN
cross-sectional_height
0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
material_document_and_classification
MIL-R-83451/1 MIL SPEC SINGLE MATERIAL RESPONSE
NSN
5331-01-485-6435
COMPONENT DIAGRAM
KEY FEATURES
•
HARDNESS RATING: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-83451/1 MIL SPEC SINGLE MATERIAL RESPONSE
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
•
CENTER HOLE DIAMETER: 0.419 INCHES MINIMUM AND 0.429 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
HARDNESS RATING
70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM
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FREQUENTLY ASKED QUESTIONS
What is ST1946-111?
ST1946-111 is a O-RING.
What parts can replace ST1946-111?
There are 5 known substitutes for ST1946-111: AS568-111, AS568-111-AMS7276, L180-111CP and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST1946-111?
ST1946-111 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-485-6435. This indicates validated use in U.S. government and defense supply chains.
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