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Technical Data Sheet
168681R1 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: IRON CAST, ear_radius: 0.312 INCHES NOMINAL IN, body_radius: 2.094 INCHES NOMINAL IN, inside_angle: 90.0 DEGREES NOMINAL, hole_diameter: 0.344 INCHES NOMINAL IN, body_thickness: 0.436 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-353-0461, 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
168681R1
NSN: 5340-00-353-0461
FSC: 5340
CAGE: 45RP7 — DRESSTA NORTH AMERICA LTD (USA)
SPECIFICATIONS
materialIRON CAST
ear_radius0.312 INCHES NOMINAL IN
body_radius2.094 INCHES NOMINAL IN
inside_angle90.0 DEGREES NOMINAL
hole_diameter0.344 INCHES NOMINAL IN
body_thickness0.436 INCHES NOMINAL IN
inside_diameter1.752 INCHES NOMINAL IN
inverted_radius0.187 INCHES NOMINAL IN
flange_thickness0.406 INCHES NOMINAL IN
features_providedOBSERVATION FACILITY
body_outside_radius0.063 INCHES NOMINAL IN
bolt_circle_diameter4.188 INCHES NOMINAL IN
NSN5340-00-353-0461
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 168681R1 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
INSIDE DIAMETER: 1.752 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLE: ROUND, FOUR EARS AND HOLES
INSIDE CORNER RADIUS: 0.094 INCHES NOMINAL IN
FIRST RECESS INSIDE HEIGHT: 0.875 INCHES NOMINAL IN
HOLE DIAMETER: 0.344 INCHES NOMINAL IN
INSIDE ANGLE: 90.0 DEGREES NOMINAL
FIRST RECESS DIAMETER: 3.250 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER: 4.188 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER1.752 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEROUND, FOUR EARS AND HOLES
INSIDE CORNER RADIUS0.094 INCHES NOMINAL IN
FIRST RECESS INSIDE HEIGHT0.875 INCHES NOMINAL IN
HOLE DIAMETER0.344 INCHES NOMINAL IN
INSIDE ANGLE90.0 DEGREES NOMINAL
FIRST RECESS DIAMETER3.250 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER4.188 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS0.250 INCHES NOMINAL IN
MATERIALIRON CAST
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
SK62210Interchangeable
interchangeable cross-reference
interchangeable
266224Interchangeable
interchangeable cross-reference
interchangeable
9RInterchangeable
interchangeable cross-reference
interchangeable
NO REFInterchangeable
interchangeable cross-reference
interchangeable
0088 1237Interchangeable
interchangeable cross-reference
interchangeable
491AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 168681R1?
168681R1 is a COVER,ACCESS.
What parts can replace 168681R1?
There are 13 known substitutes for 168681R1: SK62210, 266224, 9R and 10 more. Substitute compatibility should be verified for your specific system.
Is 168681R1 still available?
168681R1 is currently cancelled.
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