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5340PL1879047 — PLUG,PROTECTIVE,DUST AND MOISTUR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5340PL1879047: PLUG,PROTECTIVE,DUST AND MOISTUR.

PLUG,PROTECTIVE,DUST AND MOISTUR. Key specifications include material: PLASTIC, drive_type: SCREW SLOT, design_type: THREADED, thread_class: 3A A, overall_diameter: 0.813 INCHES NOMINAL IN, features_provided: SHOULDER. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-597-9453, 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
5340PL1879047
NSN: 5340-00-597-9453
FSC: 5340 — Hardware, Commercial
CAGE: 9009H — JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX (POL)
SPECIFICATIONS
materialPLASTIC
drive_typeSCREW SLOT
design_typeTHREADED
thread_class3A A
overall_diameter0.813 INCHES NOMINAL IN
features_providedSHOULDER
thread_size_and_series/type_designator9/16-20 UN
NSN5340-00-597-9453
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5340PL1879047 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
•
OVERALL DIAMETER: 0.813 INCHES NOMINAL IN
•
DRIVE TYPE: SCREW SLOT
•
FEATURES PROVIDED: SHOULDER
•
THREAD CLASS: 3A A
•
MATERIAL: PLASTIC
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 9/16-20 UN
TECHNICAL CHARACTERISTICS
DESIGN TYPETHREADED
OVERALL DIAMETER0.813 INCHES NOMINAL IN
DRIVE TYPESCREW SLOT
FEATURES PROVIDEDSHOULDER
THREAD CLASS3A A
MATERIALPLASTIC
THREAD SIZE AND SERIES/TYPE DESIGNATOR9/16-20 UN
SUBSTITUTES & CROSS-REFERENCES 4
323-540Reference document
Same NSN cross-reference
Reference document — Secondary reference
5376294Reference document
Same NSN cross-reference
Reference document — Secondary reference
78148Reference document
Same NSN cross-reference
Reference document — Secondary reference
1604-79Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5340PL1879047?
5340PL1879047 is a PLUG,PROTECTIVE,DUST AND MOISTUR.
What parts can replace 5340PL1879047?
There are 4 known substitutes for 5340PL1879047: 323-540, 5376294, 78148 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5340PL1879047?
5340PL1879047 is cataloged in the U.S. Government catalog under NSN 5340-00-597-9453. 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.