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PartsTable / COMPONENT / 4000-21165 ITEM 6
4000-21165 ITEM 6 ✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The CAP,PILLOW BLOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_type: STRAIGHT, face_width: 0.109 INCHES NOMINAL IN, head_style: HEXAGON, body_length: 0.870 INCHES MAXIMUM IN, bore_length: 0.438 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3130-01-191-3058, 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
4000-21165 ITEM 6
NSN: 3130-01-191-3058
FSC: 3130
CAGE: 07270 — MOOG INC. DBA AMPAC-ISP CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_typeSTRAIGHT
face_width0.109 INCHES NOMINAL IN
head_styleHEXAGON
body_length0.870 INCHES MAXIMUM IN
bore_length0.438 INCHES NOMINAL IN
design_formPLAIN
head_height0.156 INCHES NOMINAL IN
thread_size0.190-32
tooth_pitch0.295 INCHES NOMINAL IN
body_diameter2.625 INCHES NOMINAL IN
bore_diameter0.375 INCHES NOMINAL IN
NSN3130-01-191-3058
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 4000-21165 ITEM 6 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
21319Interchangeable
interchangeable cross-reference
interchangeable
21241Interchangeable
interchangeable cross-reference
interchangeable
56516SAPC2Interchangeable
interchangeable cross-reference
interchangeable
21319-1004-1Interchangeable
interchangeable cross-reference
interchangeable
21319 FIND NO.10Interchangeable
interchangeable cross-reference
interchangeable
21319-850-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4000-21165 ITEM 6?
4000-21165 ITEM 6 is a CAP,PILLOW BLOCK.
What parts can replace 4000-21165 ITEM 6?
There are 15 known substitutes for 4000-21165 ITEM 6: 21319, 21241, 56516SAPC2 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4000-21165 ITEM 6?
4000-21165 ITEM 6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3130-01-191-3058. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026