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421808 — PLATE,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

421808: PLATE,MOUNTING.

The PLATE,MOUNTING is a the manufacturer industrial component. Key specifications include special_features: MOUNTING PLATE USED TO MOUNT THE DISTRIBUTION NOZZLE THAT DISPERSES THEEXTINGUISHING AGENT, end_item_identification: MARINE CORPS LIGHT ARMORED VEHICLE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-568-9201, 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
421808
NSN: 5340-01-568-9201
FSC: 5340 — Hardware, Commercial
CAGE: 05BU0 — KIDDE TECHNOLOGIES INC DBA KIDDE DUAL SPECTRUM DIV KIDDE DUAL SPECTRUM (USA)
SPECIFICATIONS
special_featuresMOUNTING PLATE USED TO MOUNT THE DISTRIBUTION NOZZLE THAT DISPERSES THEEXTINGUISHING AGENT
end_item_identificationMARINE CORPS LIGHT ARMORED VEHICLE
NSN5340-01-568-9201
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 421808 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESMOUNTING PLATE USED TO MOUNT THE DISTRIBUTION NOZZLE THAT DISPERSES THEEXTINGUISHING AGENT
END ITEM IDENTIFICATIONMARINE CORPS LIGHT ARMORED VEHICLE
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 421808?
421808 is a PLATE,MOUNTING.
What is the NSN for 421808?
421808 is cataloged in the U.S. Government catalog under NSN 5340-01-568-9201. 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.