PartsTable
Technical Data Sheet
78986 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

PLUG,PROTECTIVE,DUST AND MOISTUR. Key specifications include material: ALUMINUM ALLOY 7075, heat_treatment: T-6510 SOLUTION HEAT TREATED AND STRESS RELIEVED BY STRETCHING, fabrication_method: EXTRUDED, weight_per_unit_measure: 0.264 POUNDS PER LINEAR FOOT LBS, material_document_and_classification: AMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-700-1423, 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
78986
NSN: 5340-00-700-1423
FSC: 5340
CAGE: 42271 — KENOSHA AUTOMOTIVE PLANT SUB OF AMERICAN MOTORS CORP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 7075
heat_treatmentT-6510 SOLUTION HEAT TREATED AND STRESS RELIEVED BY STRETCHING
fabrication_methodEXTRUDED
weight_per_unit_measure0.264 POUNDS PER LINEAR FOOT LBS
material_document_and_classificationAMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-00-700-1423
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 78986 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
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 0.287 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
MATERIAL: STEEL
OVERALL DIAMETER: 0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
DESIGN TYPE: FRICTION
TECHNICAL CHARACTERISTICS (FLIS)
OPENING INSIDE DIAMETER FOR WHICH DESIGNED0.287 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
MATERIALSTEEL
END ITEM IDENTIFICATIONW/S:AIRCRAFT, T-39; 485L TACS; VEHICLE, COMMERCIAL UTILITY CARGO (CUCV); COMMUNICATIONS PROGRAM, COMBAT THEATER (TRI-TAC) 478I
OVERALL DIAMETER0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
DESIGN TYPEFRICTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
11611Interchangeable
interchangeable cross-reference
interchangeable
00911611Interchangeable
interchangeable cross-reference
interchangeable
9-11611Interchangeable
interchangeable cross-reference
interchangeable
260-0325-00Interchangeable
interchangeable cross-reference
interchangeable
TYPEFInterchangeable
interchangeable cross-reference
interchangeable
SM-B-148637Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 78986?
78986 is a PLUG,PROTECTIVE,DUST AND MOISTUR.
What parts can replace 78986?
There are 26 known substitutes for 78986: 11611, 00911611, 9-11611 and 23 more. Substitute compatibility should be verified for your specific system.
Is 78986 still available?
78986 is currently cancelled.
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