PartsTable
Technical Data Sheet
Download PDF

3963284 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3963284: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: PLASTIC, design_type: MOLDED, overall_height: 30.0 MILLIMETERS NOMINAL MM, overall_length: 35.0 MILLIMETERS NOMINAL MM, end_item_identification: 2320015341887, part_name_assigned_by_controlling_agency: COVER, SEAL, VALVE ASSY, CRANE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-680-8925, 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
3963284
NSN: 5340-01-680-8925
FSC: 5340 — Hardware, Commercial
CAGE: 34914 — HIAB USA INC (USA)
SPECIFICATIONS
materialPLASTIC
design_typeMOLDED
overall_height30.0 MILLIMETERS NOMINAL MM
overall_length35.0 MILLIMETERS NOMINAL MM
end_item_identification2320015341887
part_name_assigned_by_controlling_agencyCOVER, SEAL, VALVE ASSY, CRANE
NSN5340-01-680-8925
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3963284 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
•
DESIGN TYPE: MOLDED
•
MATERIAL: PLASTIC
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT30.0 MILLIMETERS NOMINAL MM
DESIGN TYPEMOLDED
OVERALL LENGTH35.0 MILLIMETERS NOMINAL MM
PART NAME ASSIGNED BY CONTROLLING AGENCYCOVER, SEAL, VALVE ASSY, CRANE
END ITEM IDENTIFICATION2320015341887
MATERIALPLASTIC
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 1
4466312Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 3963284?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 3963284?
3963284 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 3963284?
There is 1 known substitute for 3963284: 4466312. Substitute compatibility should be verified for your specific system.
What is the NSN for 3963284?
3963284 is cataloged in the U.S. Government catalog under NSN 5340-01-680-8925. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 3963284

✓ 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.