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851803 — BOOT,DUST AND MOISTURE SEAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

851803: BOOT,DUST AND MOISTURE SEAL.

The BOOT,DUST AND MOISTURE SEAL is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC BODY, body_height: 0.594 INCHES NOMINAL IN, style_designator: THRU-HOLE, material_thickness: 0.063 INCHES NOMINAL IN, body_outside_diameter: 1.750 INCHES NOMINAL IN, opening_inside_diameter: 0.406 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-164-1972, 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
851803
NSN: 5340-00-164-1972
FSC: 5340 — Hardware, Commercial
CAGE: 89749 — CLARK MATERIAL HANDLING COMPANY (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC BODY
body_height0.594 INCHES NOMINAL IN
style_designatorTHRU-HOLE
material_thickness0.063 INCHES NOMINAL IN
body_outside_diameter1.750 INCHES NOMINAL IN
opening_inside_diameter0.406 INCHES NOMINAL IN
NSN5340-00-164-1972
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 851803 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
•
OPENING INSIDE DIAMETER: 0.406 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 1.750 INCHES NOMINAL IN
•
BODY HEIGHT: 0.594 INCHES NOMINAL IN
•
STYLE DESIGNATOR: THRU-HOLE
•
MATERIAL THICKNESS: 0.063 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC BODY
TECHNICAL CHARACTERISTICS
OPENING INSIDE DIAMETER0.406 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER1.750 INCHES NOMINAL IN
BODY HEIGHT0.594 INCHES NOMINAL IN
STYLE DESIGNATORTHRU-HOLE
MATERIAL THICKNESS0.063 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC BODY
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 2
07-851803Reference document
Same NSN cross-reference
Reference document — Secondary reference
F3863Same 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 851803?
851803 is a BOOT,DUST AND MOISTURE SEAL.
What parts can replace 851803?
There are 2 known substitutes for 851803: 07-851803, F3863. Substitute compatibility should be verified for your specific system.
What is the NSN for 851803?
851803 is cataloged in the U.S. Government catalog under NSN 5340-00-164-1972. This indicates validated use in U.S. government and defense supply chains.
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