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Technical Data Sheet
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A53-7 — Technical Data Sheet

✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

ANVIL,FASTENER INSTALLATION TOOL. Key specifications include material: COPPER OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 0.8400 INCHES MINIMUM AND 0.8600 INCHES MAXIMUM IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 1.1065 INCHES MINIMUM AND 1.1075 INCHES MAXIMUM IN, body_outside_diameter: 1.2370 INCHES MINIMUM AND 1.2400 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System under NSN 3120-00-273-5898, 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
A53-7
NSN: 3120-00-273-5898
FSC: 3120
CAGE: 28873 — ITW FOOD EQUIPMENT GROUP LLC DBA HOBART SERVICE (USA)
SPECIFICATIONS
materialCOPPER OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length0.8400 INCHES MINIMUM AND 0.8600 INCHES MAXIMUM IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter1.1065 INCHES MINIMUM AND 1.1075 INCHES MAXIMUM IN
body_outside_diameter1.2370 INCHES MINIMUM AND 1.2400 INCHES MAXIMUM IN
general_characteristics_item_descriptionCHUCK DIA 0.598 IN.,MANDREL DIA 0.438 IN.,OVERALL DIA 1.120 IN.,LG 1.850 IN. IN
NSN3120-00-273-5898
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: A53-7 · 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
•
MATERIAL: OIL LUBRICATING LUBRICATION
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
BODY OUTSIDE DIAMETER: 1.2370 INCHES MINIMUM AND 1.2400 INCHES MAXIMUM IN
•
BODY INSIDE DIAMETER: 1.1065 INCHES MINIMUM AND 1.1075 INCHES MAXIMUM IN
•
CORNER SHAPE: SQUARE ALL CORNERS
TECHNICAL CHARACTERISTICS
MATERIALOIL LUBRICATING LUBRICATION
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
MATERIALCOPPER OVERALL
OVERALL LENGTH0.8400 INCHES MINIMUM AND 0.8600 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER1.2370 INCHES MINIMUM AND 1.2400 INCHES MAXIMUM IN
BODY INSIDE DIAMETER1.1065 INCHES MINIMUM AND 1.1075 INCHES MAXIMUM IN
CORNER SHAPESQUARE ALL CORNERS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
74S77-020InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
70623-020InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
RS1016-020InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
576-6202-1506065REVAPC903InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
4267-02REVEPC4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
7893-03REVAPC1165InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A53-7?
A53-7 is a ANVIL,FASTENER INSTALLATION TOOL.
What parts can replace A53-7?
There are 17 known substitutes for A53-7: 74S77-020, 70623-020, RS1016-020 and 14 more. Substitute compatibility should be verified for your specific system.
Is A53-7 still available?
A53-7 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026