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PartsTable / COMPONENT / 783RW
783RW ✓ 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 BUMPER is a the manufacturer industrial component. Key specifications include color: BLACK, material: RUBBER SYNTHETIC, hole_diameter: 0.187 INCHES NOMINAL IN, overall_height: 0.843 INCHES NOMINAL IN, style_designator: FLAT TOP CHAMFERED SHANK COUNTERBORED, chamfer_angle_in_deg: 15.0. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-809-0322, 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
783RW
NSN: 5340-00-809-0322
FSC: 5340
CAGE: 75543 — LAVELLE INDUSTRIES INC (USA)
SPECIFICATIONS
colorBLACK
materialRUBBER SYNTHETIC
hole_diameter0.187 INCHES NOMINAL IN
overall_height0.843 INCHES NOMINAL IN
style_designatorFLAT TOP CHAMFERED SHANK COUNTERBORED
chamfer_angle_in_deg15.0
first_counterbore_depth0.437 INCHES NOMINAL IN
material_hardness_rating70.0 DUROMETER MINIMUM AND 80.0 DUROMETER MAXIMUM
first_counterbore_diameter0.375 INCHES NOMINAL IN
outside/top_flange_diameter1.062 INCHES NOMINAL IN
material_document_and_classificationMIL-R-3065, GRADE RS 720 MIL SPEC SINGLE MATERIAL RESPONSE
NSN5340-00-809-0322
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 783RW 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-3065, GRADE RS 720 MIL SPEC SINGLE MATERIAL RESPONSE
•
FIRST COUNTERBORE DEPTH: 0.437 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC
•
FIRST COUNTERBORE DIAMETER: 0.375 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLAT TOP CHAMFERED SHANK COUNTERBORED
•
CHAMFER ANGLE IN DEG: 15.0
•
HOLE DIAMETER: 0.187 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-3065, GRADE RS 720 MIL SPEC SINGLE MATERIAL RESPONSE
FIRST COUNTERBORE DEPTH0.437 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC
FIRST COUNTERBORE DIAMETER0.375 INCHES NOMINAL IN
STYLE DESIGNATORFLAT TOP CHAMFERED SHANK COUNTERBORED
CHAMFER ANGLE IN DEG15.0
HOLE DIAMETER0.187 INCHES NOMINAL IN
OVERALL HEIGHT0.843 INCHES NOMINAL IN
OUTSIDE/TOP FLANGE DIAMETER1.062 INCHES NOMINAL IN
MATERIAL HARDNESS RATING70.0 DUROMETER MINIMUM AND 80.0 DUROMETER MAXIMUM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
50683Interchangeable
interchangeable cross-reference
interchangeable
50683-01Interchangeable
interchangeable cross-reference
interchangeable
BD2027RInterchangeable
interchangeable cross-reference
interchangeable
BD2027Interchangeable
interchangeable cross-reference
interchangeable
1949795Interchangeable
interchangeable cross-reference
interchangeable
6230-0625Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 783RW?
783RW is a BUMPER.
What parts can replace 783RW?
There are 10 known substitutes for 783RW: 50683, 50683-01, BD2027R and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 783RW?
783RW is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-809-0322. 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