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A-A-52491 — RESISTOR,FIXED,WIRE WOUND,INDUCT

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

A-A-52491: RESISTOR,FIXED,WIRE WOUND,INDUCT.

RESISTOR,FIXED,WIRE WOUND,INDUCT. Key specifications include material: STEEL COMP E51100 OR STEEL COMP E52100 OVERALL, alignment_type: RIGID, overall_height: 14.0 MILLIMETERS NOMINAL MM, surface_finish: GROUND, special_features: 1.0313 LARGE BORE, style_designator: GROOVED RACE SURFACE. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-156-1709, 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
A-A-52491
NSN: 3110-00-156-1709
NIINs: 001561709, 001561712, 001561714, 001561715, 001561716, 001561718, 001561724, 001561725, 001561727, 001561760, 001561769, 001561798, 001561800, 001561827, 001561851, 001561852, 001561853, 001561856, 001561857, 001561858, 001561860, 001561865, 001561866, 001561868, 001561870, 001561876, 001561879, 001561881, 001561883, 001561884, 001561886, 001561889, 001561892, 001561896, 001561901, 001561904, 001561905, 001561908, 001561909, 001561914, 001561918, 001561921, 001586626
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialSTEEL COMP E51100 OR STEEL COMP E52100 OVERALL
alignment_typeRIGID
overall_height14.0 MILLIMETERS NOMINAL MM
surface_finishGROUND
special_features1.0313 LARGE BORE
style_designatorGROOVED RACE SURFACE
lubrication_materialGREASE
largest_bore_diameter0.7953 INCHES NOMINAL IN
bore_smallest_diameter45.0 MILLIMETERS NOMINAL MM
end_item_identificationPAN PLATFORM.
overall_outside_diameter65.0 MILLIMETERS NOMINAL MM
specification/standard_data58536-AA52491-59 MANUFACTURERS SPECIFICATION CONTROL
NSN3110-00-156-1709
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: A-A-52491 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: GROOVED RACE SURFACE
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
THRUST DIRECTIONAL CAPABILITY DESIGNATION: SINGLE
•
OVERALL OUTSIDE DIAMETER: 1.4687 INCHES NOMINAL IN
•
BORE SMALLEST DIAMETER: 0.7500 INCHES NOMINAL IN
•
ALIGNMENT TYPE: RIGID
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.5625 INCHES NOMINAL IN
SURFACE FINISHGROUND
STYLE DESIGNATORGROOVED RACE SURFACE
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
THRUST DIRECTIONAL CAPABILITY DESIGNATIONSINGLE
OVERALL OUTSIDE DIAMETER1.4687 INCHES NOMINAL IN
BORE SMALLEST DIAMETER0.7500 INCHES NOMINAL IN
ALIGNMENT TYPERIGID
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR THRUST BEARINGS
MATERIALSTEEL COMP E51100 OR STEEL COMP E52100 OVERALL
SUBSTITUTES & CROSS-REFERENCES 7
A52491-13Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LEANReference document
Same NSN cross-reference
Reference document — Secondary reference
1005Reference document
Same NSN cross-reference
Reference document — Secondary reference
A2205Reference document
Same NSN cross-reference
Reference document — Secondary reference
GT5Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS17161-13Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 A-A-52491?
A-A-52491 is a RESISTOR,FIXED,WIRE WOUND,INDUCT.
What parts can replace A-A-52491?
There are 7 known substitutes for A-A-52491: A52491-13, LEAN, 1005 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A-A-52491?
A-A-52491 is cataloged in the U.S. Government catalog under NSN 3110-00-156-1709. This indicates validated use in U.S. government and defense supply chains.
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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.