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1A2457 — BEARING,ROLLER,CYLINDRICAL

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1A2457: BEARING,ROLLER,CYLINDRICAL.

The BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include height: 0.094 INCHES NOMINAL IN, diameter: 0.312 INCHES NOMINAL IN, material: STEEL COMP 1010 OR STEEL COMP B1111 OVERALL, head_style: FLAT, chamfer_length: 0.078 INCHES NOMINAL IN, style_designator: STRAIGHT. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-012-1741, 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
1A2457
NSN: 5315-00-012-1741
NIINs: 000121741, 013896309
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
height0.094 INCHES NOMINAL IN
diameter0.312 INCHES NOMINAL IN
materialSTEEL COMP 1010 OR STEEL COMP B1111 OVERALL
head_styleFLAT
chamfer_length0.078 INCHES NOMINAL IN
style_designatorSTRAIGHT
features_providedCASEHARDENED
pin_chamfer_angle15.0 DEGREES NOMINAL
pin_head_diameter0.438 INCHES NOMINAL IN
surface_treatmentCADMIUM OR ZINC OVERALL
under_head_length0.969 INCHES NOMINAL IN
first_hole_diameter0.1094 INCHES NOMINAL IN
NSN5315-00-012-1741
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1A2457 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CHAMFER LENGTH: 0.078 INCHES NOMINAL IN
•
HOLE ARRANGEMENT STYLE: ONE END DRILLED
•
UNDER HEAD LENGTH: 0.969 INCHES NOMINAL IN
•
PIN CHAMFER ANGLE: 15.0 DEGREES NOMINAL
•
FIRST HOLE DIAMETER: 0.1094 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT
•
PIN HEAD DIAMETER: 0.438 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633 FED SPEC ALL MATERIAL RESPONSES OVERALL
TECHNICAL CHARACTERISTICS
CHAMFER LENGTH0.078 INCHES NOMINAL IN
HOLE ARRANGEMENT STYLEONE END DRILLED
UNDER HEAD LENGTH0.969 INCHES NOMINAL IN
PIN CHAMFER ANGLE15.0 DEGREES NOMINAL
FIRST HOLE DIAMETER0.1094 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT
PIN HEAD DIAMETER0.438 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633 FED SPEC ALL MATERIAL RESPONSES OVERALL
DIAMETER0.312 INCHES NOMINAL IN
FEATURES PROVIDEDCASEHARDENED
SUBSTITUTES & CROSS-REFERENCES 2
121741Reference document
Same NSN cross-reference
Reference document — Secondary reference
7393197Reference 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 1A2457?
1A2457 is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace 1A2457?
There are 2 known substitutes for 1A2457: 121741, 7393197. Substitute compatibility should be verified for your specific system.
What is the NSN for 1A2457?
1A2457 is cataloged in the U.S. Government catalog under NSN 5315-00-012-1741. 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.