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31082B — CABLE ASSEMBLY,SPECIAL PURPOSE,E

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

31082B: CABLE ASSEMBLY,SPECIAL PURPOSE,E.

CABLE ASSEMBLY,SPECIAL PURPOSE,E. Key specifications include material: STEEL OUTER LAYER, hole_diameter: 0.3750 INCHES NOMINAL FIRST IN, style_designator: HALF SLEEVE, EXTERNAL FLANGES BOTH ENDS, left_flange_width: 0.2350 INCHES MINIMUM AND 0.2360 INCHES MAXIMUM IN, right_flange_width: 0.2350 INCHES MINIMUM AND 0.2360 INCHES MAXIMUM IN, body_inside_diameter: 3.5010 INCHES MINIMUM AND 3.5020 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-605-5272, 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
31082B
NSN: 3120-00-605-5272
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (USA)
SPECIFICATIONS
materialSTEEL OUTER LAYER
hole_diameter0.3750 INCHES NOMINAL FIRST IN
style_designatorHALF SLEEVE, EXTERNAL FLANGES BOTH ENDS
left_flange_width0.2350 INCHES MINIMUM AND 0.2360 INCHES MAXIMUM IN
right_flange_width0.2350 INCHES MINIMUM AND 0.2360 INCHES MAXIMUM IN
body_inside_diameter3.5010 INCHES MINIMUM AND 3.5020 INCHES MAXIMUM IN
body_outside_diameter3.9060 INCHES MINIMUM AND 3.9070 INCHES MAXIMUM IN
left_flange_outside_diameter4.2450 INCHES MINIMUM AND 4.2550 INCHES MAXIMUM IN
lubricant_accommodation_styleGROOVED SINGLE LOOP
right_flange_outside_diameter4.2450 INCHES MINIMUM AND 4.2550 INCHES MAXIMUM IN
antirotation/lubrication_type_and_quantity1 HOLE
NSN3120-00-605-5272
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 31082B · 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
•
RIGHT FLANGE WIDTH: 0.2350 INCHES MINIMUM AND 0.2360 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 3.9060 INCHES MINIMUM AND 3.9070 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: HALF SLEEVE, EXTERNAL FLANGES BOTH ENDS
•
BODY INSIDE DIAMETER: 3.5010 INCHES MINIMUM AND 3.5020 INCHES MAXIMUM IN
•
RIGHT FLANGE OUTSIDE DIAMETER: 4.2450 INCHES MINIMUM AND 4.2550 INCHES MAXIMUM IN
•
LUBRICANT ACCOMMODATION STYLE: GROOVED SINGLE LOOP
•
LEFT FLANGE OUTSIDE DIAMETER: 4.2450 INCHES MINIMUM AND 4.2550 INCHES MAXIMUM IN
•
LEFT FLANGE WIDTH: 0.2350 INCHES MINIMUM AND 0.2360 INCHES MAXIMUM IN
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS
RIGHT FLANGE WIDTH0.2350 INCHES MINIMUM AND 0.2360 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER3.9060 INCHES MINIMUM AND 3.9070 INCHES MAXIMUM IN
STYLE DESIGNATORHALF SLEEVE, EXTERNAL FLANGES BOTH ENDS
BODY INSIDE DIAMETER3.5010 INCHES MINIMUM AND 3.5020 INCHES MAXIMUM IN
RIGHT FLANGE OUTSIDE DIAMETER4.2450 INCHES MINIMUM AND 4.2550 INCHES MAXIMUM IN
LUBRICANT ACCOMMODATION STYLEGROOVED SINGLE LOOP
LEFT FLANGE OUTSIDE DIAMETER4.2450 INCHES MINIMUM AND 4.2550 INCHES MAXIMUM IN
LEFT FLANGE WIDTH0.2350 INCHES MINIMUM AND 0.2360 INCHES MAXIMUM IN
ANTIROTATION/LUBRICATION TYPE AND QUANTITY1 HOLE
MATERIALTIN ALLOY INNER LAYER
SUBSTITUTES & CROSS-REFERENCES 4
33096BReference document
Same NSN cross-reference
Reference document — Secondary reference
214554Reference document
Same NSN cross-reference
Reference document — Secondary reference
7540373Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
394611Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 31082B?
31082B is a CABLE ASSEMBLY,SPECIAL PURPOSE,E.
What parts can replace 31082B?
There are 4 known substitutes for 31082B: 33096B, 214554, 7540373 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 31082B?
31082B is cataloged in the U.S. Government catalog under NSN 3120-00-605-5272. 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.