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Technical Data Sheet
PartsTable / COMPONENT / LR57-2
LR57-2 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1095, ring_style: HOOKED WIRE, usage_design: INTERNAL, inside_diameter: 0.560 INCHES NOMINAL IN, outside_diameter: 0.656 INCHES NOMINAL IN, material_diameter: 0.048 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-616-4357, 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
LR57-2
NSN: 5325-00-616-4357
FSC: 5325
CAGE: 77535 — ASSOCIATED SPRING US, LLC DIV CORRY (USA)
SPECIFICATIONS
materialSTEEL COMP 1095
ring_styleHOOKED WIRE
usage_designINTERNAL
inside_diameter0.560 INCHES NOMINAL IN
outside_diameter0.656 INCHES NOMINAL IN
material_diameter0.048 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleROUND
material_document_and_classificationQQ-S-633(-2), FS1095 FED SPEC SINGLE MATERIAL RESPONSE
NSN5325-00-616-4357
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: LR57-2 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
OUTSIDE DIAMETER: 0.656 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL COMP 1095
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633(-2), FS1095 FED SPEC SINGLE MATERIAL RESPONSE
•
RING STYLE: HOOKED WIRE
•
USAGE DESIGN: INTERNAL
•
MATERIAL DIAMETER: 0.048 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CASEHARDENING INDICATORNOT CASEHARDENED
OUTSIDE DIAMETER0.656 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEROUND
MATERIALSTEEL COMP 1095
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633(-2), FS1095 FED SPEC SINGLE MATERIAL RESPONSE
RING STYLEHOOKED WIRE
USAGE DESIGNINTERNAL
MATERIAL DIAMETER0.048 INCHES NOMINAL IN
INSIDE DIAMETER0.560 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
220004Interchangeable
interchangeable cross-reference
interchangeable
LR5ANDL450Interchangeable
interchangeable cross-reference
interchangeable
WC586TYPE1DESIGN1STYLELRInterchangeable
interchangeable cross-reference
interchangeable
A-A-50563Interchangeable
interchangeable cross-reference
interchangeable
JAN1N758A-1Interchangeable
interchangeable cross-reference
interchangeable
JEDEC 1N758AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is LR57-2?
LR57-2 is a RING,RETAINING.
What parts can replace LR57-2?
There are 8 known substitutes for LR57-2: 220004, LR5ANDL450, WC586TYPE1DESIGN1STYLELR and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for LR57-2?
LR57-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-616-4357. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026