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6386363-003 — BOOT,DUST AND MOISTURE SEAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6386363-003: BOOT,DUST AND MOISTURE SEAL.

The BOOT,DUST AND MOISTURE SEAL is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE BODY, base_width: 1.750 INCHES NOMINAL IN, overall_height: 4.090 INCHES NOMINAL IN, sealing_method: MECHANICAL, base_overall_length: 3.280 INCHES NOMINAL IN, accommodation_hole_width: 1.560 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-346-3784, 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
6386363-003
NSN: 5340-01-346-3784
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE BODY
base_width1.750 INCHES NOMINAL IN
overall_height4.090 INCHES NOMINAL IN
sealing_methodMECHANICAL
base_overall_length3.280 INCHES NOMINAL IN
accommodation_hole_width1.560 INCHES NOMINAL IN
accommodation_hole_length2.290 INCHES NOMINAL IN
NSN5340-01-346-3784
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6386363-003 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
•
ACCOMMODATION HOLE WIDTH: 1.560 INCHES NOMINAL IN
•
SEALING METHOD: MECHANICAL
•
BASE OVERALL LENGTH: 3.280 INCHES NOMINAL IN
•
BASE WIDTH: 1.750 INCHES NOMINAL IN
•
ACCOMMODATION HOLE LENGTH: 2.290 INCHES NOMINAL IN
•
MATERIAL: RUBBER CHLOROPRENE BODY
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT4.090 INCHES NOMINAL IN
ACCOMMODATION HOLE WIDTH1.560 INCHES NOMINAL IN
SEALING METHODMECHANICAL
BASE OVERALL LENGTH3.280 INCHES NOMINAL IN
BASE WIDTH1.750 INCHES NOMINAL IN
ACCOMMODATION HOLE LENGTH2.290 INCHES NOMINAL IN
MATERIALRUBBER CHLOROPRENE BODY
SUBSTITUTES & CROSS-REFERENCES 1
1981-003Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6386363-003?
6386363-003 is a BOOT,DUST AND MOISTURE SEAL.
What parts can replace 6386363-003?
There is 1 known substitute for 6386363-003: 1981-003. Substitute compatibility should be verified for your specific system.
What is the NSN for 6386363-003?
6386363-003 is cataloged in the U.S. Government catalog under NSN 5340-01-346-3784. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.