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Technical Data Sheet
PartsTable / COMPONENT / 709-8500409 ITEM 38-1D4
709-8500409 ITEM 38-1D4 ✓ 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 BLOCK,CHEEK FLAT BA is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON BOARD, nut_style: SLOTTED, HEXAGON, body_style: BARRIER TYPE, nut_height: 0.203 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-649-2447, 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
709-8500409 ITEM 38-1D4
NSN: 3120-01-649-2447
FSC: 3120
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON BOARD
nut_styleSLOTTED, HEXAGON
body_styleBARRIER TYPE
nut_height0.203 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNF
base_thickness0.250 INCHES IN
overall_length0.405 INCHES MAXIMUM IN
mounting_methodTHREADED STUD(S)
special_featuresSPECIALLY GROUND POINT; 60 DEG INCLUDED TIP ANGLE; FOR DRILLING PLEXIGLASS
thread_directionRIGHT-HAND
features_providedHERMETICALLY SEALED CASE
NSN3120-01-649-2447
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 709-8500409 ITEM 38-1D4 · 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 14
72-5850-737Interchangeable
interchangeable cross-reference
interchangeable
287-54Interchangeable
interchangeable cross-reference
interchangeable
0515Interchangeable
interchangeable cross-reference
interchangeable
538139-15Interchangeable
interchangeable cross-reference
interchangeable
5E4810/14-0003Interchangeable
interchangeable cross-reference
interchangeable
720660-27Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 709-8500409 ITEM 38-1D4?
709-8500409 ITEM 38-1D4 is a BLOCK,CHEEK FLAT BA.
What parts can replace 709-8500409 ITEM 38-1D4?
There are 14 known substitutes for 709-8500409 ITEM 38-1D4: 72-5850-737, 287-54, 0515 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 709-8500409 ITEM 38-1D4?
709-8500409 ITEM 38-1D4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-649-2447. 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