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8161820 — PLUG,PROTECTIVE,DUST AND MOISTUR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

8161820: PLUG,PROTECTIVE,DUST AND MOISTUR.

PLUG,PROTECTIVE,DUST AND MOISTUR. This part is cataloged in the U.S. Government catalog under NSN 5340-00-292-3292, 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
8161820
NSN: 5340-00-292-3292
FSC: 5340 — Hardware, Commercial
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
Part Number8161820
NSN5340-00-292-3292
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8161820 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
SUBSTITUTES & CROSS-REFERENCES 8
5340PL1866828Reference document
Same NSN cross-reference
Reference document — Informative reference only
81584Reference document
Same NSN cross-reference
Reference document — Secondary reference
10160009Reference document
Same NSN cross-reference
Reference document — Informative reference only
110126-5Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
NAS818-6Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
45197-6Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8161820?
8161820 is a PLUG,PROTECTIVE,DUST AND MOISTUR.
What parts can replace 8161820?
There are 8 known substitutes for 8161820: 5340PL1866828, 81584, 10160009 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8161820?
8161820 is cataloged in the U.S. Government catalog under NSN 5340-00-292-3292. 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.