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513537 — PISTON,HYDRAULIC BRAKE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

513537: PISTON,HYDRAULIC BRAKE.

The PISTON,HYDRAULIC BRAKE is a the manufacturer industrial component. Key specifications include length: 1.200 INCHES MINIMUM AND 1.300 INCHES MAXIMUM IN, material: PLASTIC PHENOLIC OVERALL, piston_cup: NOT INCLUDED, corner_shape: SQUARE ALL CORNERS, groove_depth: 0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN, steel_insert: NOT INCLUDED. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-661-7728, 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
513537
NSN: 3120-00-661-7728
NIINs: 006617728, 006898902
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 71459 — CHRISTIAN ENGINEERING (USA)
SPECIFICATIONS
length1.200 INCHES MINIMUM AND 1.300 INCHES MAXIMUM IN
materialPLASTIC PHENOLIC OVERALL
piston_cupNOT INCLUDED
corner_shapeSQUARE ALL CORNERS
groove_depth0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
steel_insertNOT INCLUDED
overall_length3.0000 INCHES NOMINAL IN
outside_diameter1.370 INCHES MINIMUM AND 1.371 INCHES MAXIMUM IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
construction_typeONE-PIECE
surface_conditionEXTERNALLY GROOVED
body_inside_diameter1.7510 INCHES MINIMUM AND 1.7530 INCHES MAXIMUM IN
NSN3120-00-661-7728
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 513537 · 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
•
CORNER SHAPE: SQUARE ALL CORNERS
•
BODY OUTSIDE DIAMETER: 2.2500 INCHES MINIMUM AND 2.2510 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
BODY INSIDE DIAMETER: 1.7510 INCHES MINIMUM AND 1.7530 INCHES MAXIMUM IN
•
MATERIAL: PLASTIC PHENOLIC OVERALL
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER2.2500 INCHES MINIMUM AND 2.2510 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH3.0000 INCHES NOMINAL IN
BODY INSIDE DIAMETER1.7510 INCHES MINIMUM AND 1.7530 INCHES MAXIMUM IN
MATERIALPLASTIC PHENOLIC OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
N5135-37Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 513537?
513537 is a PISTON,HYDRAULIC BRAKE.
What parts can replace 513537?
There is 1 known substitute for 513537: N5135-37. Substitute compatibility should be verified for your specific system.
What is the NSN for 513537?
513537 is cataloged in the U.S. Government catalog under NSN 3120-00-661-7728. 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.