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6840364-3 — PLUG,PROTECTIVE,DUST AND MOISTUR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6840364-3: PLUG,PROTECTIVE,DUST AND MOISTUR.

PLUG,PROTECTIVE,DUST AND MOISTUR. Key specifications include material: ALUMINUM ALLOY 3003, drive_type: SERRATED, design_type: THREADED, thread_class: 3A A, features_provided: GASKET AND SHOULDER, surface_treatment: ANODIZE. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-855-7886, 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
6840364-3
NSN: 5340-00-855-7886
FSC: 5340 — Hardware, Commercial
CAGE: 63005 — ROLLS-ROYCE CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 3003
drive_typeSERRATED
design_typeTHREADED
thread_class3A A
features_providedGASKET AND SHOULDER
surface_treatmentANODIZE
material_document_and_classificationALLOY 3003, T0 NATIONAL SPEC SINGLE MATERIAL RESPONSE
thread_size_and_series/type_designator0.375-24 UNF
NSN5340-00-855-7886
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6840364-3 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: THREADED
•
DRIVE TYPE: SERRATED
•
MATERIAL DOCUMENT AND CLASSIFICATION: ALLOY 3003, T0 NATIONAL SPEC SINGLE MATERIAL RESPONSE
•
FEATURES PROVIDED: GASKET AND SHOULDER
•
SURFACE TREATMENT: ANODIZE
•
THREAD CLASS: 3A A
•
MATERIAL: ALUMINUM ALLOY 3003
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 0.375-24 UNF
TECHNICAL CHARACTERISTICS
DESIGN TYPETHREADED
DRIVE TYPESERRATED
MATERIAL DOCUMENT AND CLASSIFICATIONALLOY 3003, T0 NATIONAL SPEC SINGLE MATERIAL RESPONSE
FEATURES PROVIDEDGASKET AND SHOULDER
SURFACE TREATMENTANODIZE
THREAD CLASS3A A
MATERIALALUMINUM ALLOY 3003
THREAD SIZE AND SERIES/TYPE DESIGNATOR0.375-24 UNF
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
P3NGAReference document
Same NSN cross-reference
Reference document — Secondary reference
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 6840364-3?
6840364-3 is a PLUG,PROTECTIVE,DUST AND MOISTUR.
What parts can replace 6840364-3?
There is 1 known substitute for 6840364-3: P3NGA. Substitute compatibility should be verified for your specific system.
What is the NSN for 6840364-3?
6840364-3 is cataloged in the U.S. Government catalog under NSN 5340-00-855-7886. 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.