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9908T31 — CASTER,SWIVEL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

9908T31: CASTER,SWIVEL.

The CASTER,SWIVEL is a the manufacturer industrial component. Key specifications include material: STEEL BODY, wheel_type: BUILT UP, plate_style: RECTANGULAR, tread_width: 0.812 INCHES NOMINAL IN, coating_method: PLATED BODY, wheel_diameter: 3.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-486-2490, 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
9908T31
NSN: 5340-01-486-2490
FSC: 5340 — Hardware, Commercial
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL BODY
wheel_typeBUILT UP
plate_styleRECTANGULAR
tread_width0.812 INCHES NOMINAL IN
coating_methodPLATED BODY
wheel_diameter3.000 INCHES NOMINAL IN
wheel_quantity1
effective_height3.375 INCHES NOMINAL IN
special_featuresEQUIP-IT CASTER; CUSHION-RUBBER WHEELS; SELF-LUBE WHEEL BEARINGS; DOUBLE BALL SWIVEL BEARINGS; SIDE-CAM BRAKE
style_designatorSWIVEL OFFSET
features_providedBRAKE LOCK
surface_treatmentZINC BODY
NSN5340-01-486-2490
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 9908T31 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
•
PLATE STYLE: RECTANGULAR
•
TREAD WIDTH: 0.812 INCHES NOMINAL IN
•
WHEEL TYPE: BUILT UP
•
COATING METHOD: PLATED BODY
•
STYLE DESIGNATOR: SWIVEL OFFSET
•
CASTER PLATE MOUNTING HOLE DIAMETER: 0.312 INCHES NOMINAL IN
•
CASTER PLATE WIDTH: 3.750 INCHES NOMINAL IN
•
CASTER PLATE LENGTH: 4.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
PLATE STYLERECTANGULAR
TREAD WIDTH0.812 INCHES NOMINAL IN
WHEEL TYPEBUILT UP
COATING METHODPLATED BODY
STYLE DESIGNATORSWIVEL OFFSET
CASTER PLATE MOUNTING HOLE DIAMETER0.312 INCHES NOMINAL IN
CASTER PLATE WIDTH3.750 INCHES NOMINAL IN
CASTER PLATE LENGTH4.625 INCHES NOMINAL IN
WHEEL QUANTITY1
FEATURES PROVIDEDBRAKE LOCK
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 9908T31?
9908T31 is a CASTER,SWIVEL.
What is the NSN for 9908T31?
9908T31 is cataloged in the U.S. Government catalog under NSN 5340-01-486-2490. 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.