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K4650-AA51 — MOUNT,RESILIENT,UTILITY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

K4650-AA51: MOUNT,RESILIENT,UTILITY.

The MOUNT,RESILIENT,UTILITY is a the manufacturer industrial component. Key specifications include material: RUBBER BUSHING, load_rating: 31.0 POUNDS MAXIMUM LBS, stud_length: 0.500 INCHES NOMINAL ALL THREADED STUD IN, thread_size: UNC 0.250-20 ALL THREADED PORTIONS, special_features: DUROMETER 50 HARDNESS VALUE, style_designator: ROUND W/FLANGE THREADED STUD. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-715-8891, 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
K4650-AA51
NSN: 5340-01-715-8891
FSC: 5340 — Hardware, Commercial
CAGE: 57839 — KARMAN RUBBER COMPANY (INC) (USA)
SPECIFICATIONS
materialRUBBER BUSHING
load_rating31.0 POUNDS MAXIMUM LBS
stud_length0.500 INCHES NOMINAL ALL THREADED STUD IN
thread_sizeUNC 0.250-20 ALL THREADED PORTIONS
special_featuresDUROMETER 50 HARDNESS VALUE
style_designatorROUND W/FLANGE THREADED STUD
major_outside_diameter0.625 INCHES NOMINAL IN
end_item_identification6665-016802920
distance_from_flange_to_end0.625 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyCYLINDRICAL ISOLATOR
NSN5340-01-715-8891
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: K4650-AA51 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: 31.0 POUNDS MAXIMUM LBS
•
STYLE DESIGNATOR: ROUND W/FLANGE THREADED STUD
•
DISTANCE FROM FLANGE TO END: 0.625 INCHES NOMINAL IN
•
STUD LENGTH: 0.500 INCHES NOMINAL ALL THREADED STUD IN
•
THREAD SIZE: UNC 0.250-20 ALL THREADED PORTIONS
•
COLOR: BLACK BUSHING
TECHNICAL CHARACTERISTICS
LOAD RATING31.0 POUNDS MAXIMUM LBS
STYLE DESIGNATORROUND W/FLANGE THREADED STUD
DISTANCE FROM FLANGE TO END0.625 INCHES NOMINAL IN
STUD LENGTH0.500 INCHES NOMINAL ALL THREADED STUD IN
THREAD SIZEUNC 0.250-20 ALL THREADED PORTIONS
COLORBLACK BUSHING
SPECIAL FEATURESDUROMETER 50 HARDNESS VALUE
PART NAME ASSIGNED BY CONTROLLING AGENCYCYLINDRICAL ISOLATOR
END ITEM IDENTIFICATION6665-016802920
MATERIALRUBBER BUSHING
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is K4650-AA51?
K4650-AA51 is a MOUNT,RESILIENT,UTILITY.
What is the NSN for K4650-AA51?
K4650-AA51 is cataloged in the U.S. Government catalog under NSN 5340-01-715-8891. 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.