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20125K63 — MOUNT,RESILIENT,UTILITY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

20125K63: MOUNT,RESILIENT,UTILITY.

The MOUNT,RESILIENT,UTILITY is a the manufacturer industrial component. Key specifications include material: PLASTIC HOUSING, load_rating: 16.0 POUNDS MAXIMUM LBS, stud_length: 0.500 INCHES NOMINAL ALL THREADED STUD IN, thread_size: 1/4-20 ALL THREADED PORTIONS, style_designator: ROUND W/FLANGE THREADED STUD, major_outside_diameter: 1.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-654-1039, 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
20125K63
NSN: 5340-01-654-1039
FSC: 5340 — Hardware, Commercial
CAGE: 2V507 — MCMASTER-CARR SUPPLY COMPANY (USA)
SPECIFICATIONS
materialPLASTIC HOUSING
load_rating16.0 POUNDS MAXIMUM LBS
stud_length0.500 INCHES NOMINAL ALL THREADED STUD IN
thread_size1/4-20 ALL THREADED PORTIONS
style_designatorROUND W/FLANGE THREADED STUD
major_outside_diameter1.500 INCHES NOMINAL IN
end_item_identificationR18 FLP ASSY
distance_from_flange_to_end1.000 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyVIBRATION-DAMPING SANDWICH
NSN5340-01-654-1039
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 20125K63 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
•
LOAD RATING: 16.0 POUNDS MAXIMUM LBS
•
STYLE DESIGNATOR: ROUND W/FLANGE THREADED STUD
•
DISTANCE FROM FLANGE TO END: 1.000 INCHES NOMINAL IN
•
STUD LENGTH: 0.500 INCHES NOMINAL ALL THREADED STUD IN
•
THREAD SIZE: 1/4-20 ALL THREADED PORTIONS
•
COLOR: BLACK HOUSING
TECHNICAL CHARACTERISTICS
LOAD RATING16.0 POUNDS MAXIMUM LBS
STYLE DESIGNATORROUND W/FLANGE THREADED STUD
DISTANCE FROM FLANGE TO END1.000 INCHES NOMINAL IN
STUD LENGTH0.500 INCHES NOMINAL ALL THREADED STUD IN
THREAD SIZE1/4-20 ALL THREADED PORTIONS
COLORBLACK HOUSING
PART NAME ASSIGNED BY CONTROLLING AGENCYVIBRATION-DAMPING SANDWICH
END ITEM IDENTIFICATIONR18 FLP ASSY
MATERIALPLASTIC HOUSING
MAJOR OUTSIDE DIAMETER1.500 INCHES NOMINAL IN
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
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 20125K63?
20125K63 is a MOUNT,RESILIENT,UTILITY.
What is the NSN for 20125K63?
20125K63 is cataloged in the U.S. Government catalog under NSN 5340-01-654-1039. 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.