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5985180 — CAP,PILLOW BLOCK

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

5985180: CAP,PILLOW BLOCK.

The CAP,PILLOW BLOCK is a the manufacturer industrial component. Key specifications include end_item_identification: MK85MOD0 GUN MOUNT, general_characteristics_item_description: MATERIAL-STEEL PER AISI 4130-4140. This part is cataloged in the U.S.

Government catalog under NSN 3130-01-323-1756, 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
5985180
NSN: 3130-01-323-1756
FSC: 3130 — Bearings, Mounted
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
end_item_identificationMK85MOD0 GUN MOUNT
general_characteristics_item_descriptionMATERIAL-STEEL PER AISI 4130-4140
NSN3130-01-323-1756
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 5985180 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: MATERIAL-STEEL PER AISI 4130-4140
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONMATERIAL-STEEL PER AISI 4130-4140
END ITEM IDENTIFICATIONMK85MOD0 GUN MOUNT
OTHER ITEMS IN FSC 3130 — Bearings, Mounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3130-00-001-5118 3130-00-001-5137 3130-00-001-6585 3130-00-003-0422 3130-00-003-0455 3130-00-003-0794 3130-00-003-2802 3130-00-003-9535
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 5985180?
5985180 is a CAP,PILLOW BLOCK.
What is the NSN for 5985180?
5985180 is cataloged in the U.S. Government catalog under NSN 3130-01-323-1756. 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.