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5912K25 — HOUSING,BEARING UNIT

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

5912K25: HOUSING,BEARING UNIT.

The HOUSING,BEARING UNIT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 841 BEARING, bore_diameter: 0.6250 INCHES NOMINAL IN, housing_length: 3.250 INCHES NOMINAL IN, flange_thickness: 0.312 INCHES NOMINAL IN, housing_diameter: 0.750 INCHES NOMINAL IN, style_designator: FLANGE BLOCK. This part is cataloged in the U.S.

Government catalog under NSN 3130-01-559-9290, 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
5912K25
NSN: 3130-01-559-9290
FSC: 3130 — Bearings, Mounted
CAGE: 3A054 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialCOPPER ALLOY 841 BEARING
bore_diameter0.6250 INCHES NOMINAL IN
housing_length3.250 INCHES NOMINAL IN
flange_thickness0.312 INCHES NOMINAL IN
housing_diameter0.750 INCHES NOMINAL IN
style_designatorFLANGE BLOCK
bolt_circle_diameter0.343 INCHES NOMINAL IN
end_item_identificationMODULE SUPPORT TYPE 1 AN/AQS-20A 53711 8224100 A
NSN3130-01-559-9290
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 5912K25 · 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
•
FLANGE THICKNESS: 0.312 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLANGE BLOCK
•
BOLT CIRCLE DIAMETER: 0.343 INCHES NOMINAL IN
•
BORE DIAMETER: 0.6250 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM ALLOY HOUSING
•
HOUSING LENGTH: 3.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE THICKNESS0.312 INCHES NOMINAL IN
STYLE DESIGNATORFLANGE BLOCK
BOLT CIRCLE DIAMETER0.343 INCHES NOMINAL IN
END ITEM IDENTIFICATIONMODULE SUPPORT TYPE 1 AN/AQS-20A 53711 8224100 A
BORE DIAMETER0.6250 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY HOUSING
MATERIALCOPPER ALLOY 841 BEARING
HOUSING LENGTH3.250 INCHES NOMINAL IN
HOUSING DIAMETER0.750 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 5912K25?
5912K25 is a HOUSING,BEARING UNIT.
What is the NSN for 5912K25?
5912K25 is cataloged in the U.S. Government catalog under NSN 3130-01-559-9290. 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.