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57417 ITEM 214 — HOUSING,BEARING UNIT

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

57417 ITEM 214: HOUSING,BEARING UNIT.

The HOUSING,BEARING UNIT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OR STEEL COMP 4140 OVERALL, bore_diameter: 2.3750 INCHES NOMINAL IN, housing_length: 4.5000 INCHES NOMINAL IN, shaft_end_type: OPEN, flange_thickness: 0.3750 INCHES NOMINAL IN, housing_diameter: 4.1250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3130-01-308-1507, 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
57417 ITEM 214
NSN: 3130-01-308-1507
FSC: 3130 — Bearings, Mounted
CAGE: 82340 — L3HARRIS TECHNOLOGIES, INC. DIV SPACE AND AIRBORNE SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OR STEEL COMP 4140 OVERALL
bore_diameter2.3750 INCHES NOMINAL IN
housing_length4.5000 INCHES NOMINAL IN
shaft_end_typeOPEN
flange_thickness0.3750 INCHES NOMINAL IN
housing_diameter4.1250 INCHES NOMINAL IN
special_featuresBORE IS COUNTERBORE TO 3.374 IN. NOM DIA; 6 ADDITIONAL HOLES 0.687 IN. NOM DIA EQUALLY SPACED IN
style_designatorFLANGE BLOCK
counterbore_depth0.3125 INCHES NOMINAL IN
surface_treatmentPAINT OVERALL EXCLUDING BORE OR APERTURE
mounting_hole_typeROUND, UNTHREADED, COUNTERBORED
bolt_circle_diameter5.3750 INCHES NOMINAL IN
NSN3130-01-308-1507
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 57417 ITEM 214 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: EF108,CAGEC 82340 MFR REF SINGLE TREATMENT RESPONSE OVERALL EXCLUDING BORE OR APERTURE
•
FLANGE THICKNESS: 0.3750 INCHES NOMINAL IN
•
MOUNTING HOLE TYPE: ROUND, UNTHREADED, COUNTERBORED
•
STYLE DESIGNATOR: FLANGE BLOCK
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MOUNTING HOLE DIAMETER: 0.8110 INCHES MINIMUM AND 0.8220 INCHES MAXIMUM IN
•
OVERALL OUTSIDE DIAMETER: 6.6250 INCHES NOMINAL IN
•
COUNTERBORE DEPTH: 0.3125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONEF108,CAGEC 82340 MFR REF SINGLE TREATMENT RESPONSE OVERALL EXCLUDING BORE OR APERTURE
FLANGE THICKNESS0.3750 INCHES NOMINAL IN
MOUNTING HOLE TYPEROUND, UNTHREADED, COUNTERBORED
STYLE DESIGNATORFLANGE BLOCK
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MOUNTING HOLE DIAMETER0.8110 INCHES MINIMUM AND 0.8220 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER6.6250 INCHES NOMINAL IN
COUNTERBORE DEPTH0.3125 INCHES NOMINAL IN
COUNTERBORE DIAMETER1.0930 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER5.3750 INCHES NOMINAL IN
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 57417 ITEM 214?
57417 ITEM 214 is a HOUSING,BEARING UNIT.
What is the NSN for 57417 ITEM 214?
57417 ITEM 214 is cataloged in the U.S. Government catalog under NSN 3130-01-308-1507. This indicates validated use in U.S. government and defense supply chains.
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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.