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8773921-509 — PLUG,PROTECTIVE,DUST AND MOISTUR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

8773921-509: PLUG,PROTECTIVE,DUST AND MOISTUR.

PLUG,PROTECTIVE,DUST AND MOISTUR. Key specifications include material: RUBBER, design_type: FRICTION, special_features: RUBBER CENTER OF ITEM EXPAND WHEN COMPRESSED TO HOLE ITEM IN PLACE, features_provided: GASKET AND SHOULDER. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-689-9288, 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
8773921-509
NSN: 5340-00-689-9288
FSC: 5340 — Hardware, Commercial
CAGE: 11447 — L3 TECHNOLOGIES, INC. DIV COMMUNICATION SYSTEMS-EAST (USA)
SPECIFICATIONS
materialRUBBER
design_typeFRICTION
special_featuresRUBBER CENTER OF ITEM EXPAND WHEN COMPRESSED TO HOLE ITEM IN PLACE
features_providedGASKET AND SHOULDER
NSN5340-00-689-9288
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8773921-509 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: FRICTION
•
FEATURES PROVIDED: GASKET AND SHOULDER
•
MATERIAL: RUBBER
TECHNICAL CHARACTERISTICS
DESIGN TYPEFRICTION
FEATURES PROVIDEDGASKET AND SHOULDER
SPECIAL FEATURESRUBBER CENTER OF ITEM EXPAND WHEN COMPRESSED TO HOLE ITEM IN PLACE
MATERIALRUBBER
SUBSTITUTES & CROSS-REFERENCES 2
8501747-501Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
A7228Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 8773921-509?
8773921-509 is a PLUG,PROTECTIVE,DUST AND MOISTUR.
What parts can replace 8773921-509?
There are 2 known substitutes for 8773921-509: 8501747-501, A7228. Substitute compatibility should be verified for your specific system.
What is the NSN for 8773921-509?
8773921-509 is cataloged in the U.S. Government catalog under NSN 5340-00-689-9288. This indicates validated use in U.S. government and defense supply chains.
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