31J57 — BEARING UNIT,BALL

✓ Government record, cited

— · BALL BEARING

PRODUCT OVERVIEW

31J57: BEARING UNIT,BALL.

The BEARING UNIT,BALL is a the manufacturer industrial component. Key specifications include material: IRON MALLEABLE HOUSING, seal_type: LABYRINTH, base_length: 1.2500 INCHES NOMINAL IN, bore_diameter: 1.0000 INCHES NOMINAL IN, housing_width: 5.0000 INCHES NOMINAL IN, seal_location: BOTH ENDS. This part is cataloged in the U.S.

Government catalog under NSN 3130-00-055-1596, 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

31J57

NSN: 3130-00-055-1596
FSC: 3130 — Bearings, Mounted
CAGE: 7T795 — PENGO-JETCO EQUIPMENT A DIV OF PENGO INDUSTRIES INC (USA)

SPECIFICATIONS

material	IRON MALLEABLE HOUSING
seal_type	LABYRINTH
base_length	1.2500 INCHES NOMINAL IN
bore_diameter	1.0000 INCHES NOMINAL IN
housing_width	5.0000 INCHES NOMINAL IN
seal_location	BOTH ENDS
alignment_type	SELF-ALIGNING
base_thickness	0.3750 INCHES NOMINAL IN
housing_height	2.6562 INCHES NOMINAL IN
style_designator	PILLOW BLOCK, SOLID
features_provided	GROUND ROLLING ELEMENT GROOVE
mounting_hole_type	SLOTTED
NSN	3130-00-055-1596

COMPONENT DIAGRAM

KEY FEATURES

•

SEAL TYPE: LABYRINTH

•

LUBRICATION MATERIAL: GREASE

•

ASSEMBLY OVERALL LENGTH: 1.2188 INCHES NOMINAL IN

•

HOUSING HEIGHT: 2.6562 INCHES NOMINAL IN

•

MOUNTING SLOT LENGTH: 0.5625 INCHES NOMINAL IN

•

INTERNAL FIT-UP DESIGNATION: STANDARD

•

MOUNTING HOLE TYPE: SLOTTED

•

ROTATING ELEMENT LOCKING METHOD: DIRECT

TECHNICAL CHARACTERISTICS

SEAL TYPE	LABYRINTH
LUBRICATION MATERIAL	GREASE
ASSEMBLY OVERALL LENGTH	1.2188 INCHES NOMINAL IN
HOUSING HEIGHT	2.6562 INCHES NOMINAL IN
MOUNTING SLOT LENGTH	0.5625 INCHES NOMINAL IN
INTERNAL FIT-UP DESIGNATION	STANDARD
MOUNTING HOLE TYPE	SLOTTED
ROTATING ELEMENT LOCKING METHOD	DIRECT
SEAL LOCATION	BOTH ENDS
STYLE DESIGNATOR	PILLOW BLOCK, SOLID

SUBSTITUTES & CROSS-REFERENCES 2

LP16Reference document

Same NSN cross-reference

Reference document — Secondary reference

20204Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

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 31J57?

31J57 is a BEARING UNIT,BALL.

What parts can replace 31J57?

There are 2 known substitutes for 31J57: LP16, 20204. Substitute compatibility should be verified for your specific system.

What is the NSN for 31J57?

31J57 is cataloged in the U.S. Government catalog under NSN 3130-00-055-1596. This indicates validated use in U.S. government and defense supply chains.

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