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431030 ✓ 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

PULLER,BEARING,MARINE PROPULSION. Key specifications include end_item_identification: MARINE REDUCER,FALK CORP,MODEL 8-773805, general_characteristics_item_description: HIGH SPEED AFT PULLER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-112-1383, 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
431030
NSN: 5340-00-112-1383
FSC: 5340
CAGE: 94222 — SOUTHCO INC (USA)
SPECIFICATIONS
end_item_identificationMARINE REDUCER,FALK CORP,MODEL 8-773805
general_characteristics_item_descriptionHIGH SPEED AFT PULLER
NSN5340-00-112-1383
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 431030 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
•
MOUNTING PLATE TO PAWL DISTANCE: 0.500 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN
•
OPERATIONAL DIRECTION: LEFT-HAND
•
PAWL SWING ANGLE: 90.0 DEGREES NOMINAL
•
PAWL LENGTH FROM ACTUATING SHAFT CENTER TO PAWL END: 0.625 INCHES NOMINAL IN
•
DIAMETER: 0.344 INCHES NOMINAL IN
•
KNOB LENGTH: 0.532 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
•
WIDTH: 1.125 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OR CHROMATE OR PHOSPHATE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING PLATE TO PAWL DISTANCE0.500 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN
OPERATIONAL DIRECTIONLEFT-HAND
PAWL SWING ANGLE90.0 DEGREES NOMINAL
PAWL LENGTH FROM ACTUATING SHAFT CENTER TO PAWL END0.625 INCHES NOMINAL IN
DIAMETER0.344 INCHES NOMINAL IN
KNOB LENGTH0.532 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
WIDTH1.125 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OR CHROMATE OR PHOSPHATE OVERALL
PAWL TYPESTRAIGHT
PAWL ACTUATION METHODKNOB
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
43-1030Upgraded Successor
successor cross-reference
successor
1-5BIMNUpgraded Successor
successor cross-reference
successor
1000-01Interchangeable
interchangeable cross-reference
interchangeable
29881Interchangeable
interchangeable cross-reference
interchangeable
430-1030Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 431030?
431030 is a PULLER,BEARING,MARINE PROPULSION.
What parts can replace 431030?
There are 5 known substitutes for 431030: 43-1030, 1-5BIMN, 1000-01 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 431030?
431030 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-112-1383. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026