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DIN 471-23 — Technical Data Sheet

✓ 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, ring_style: EXTERNAL, usage_design: EXTERNAL, inside_diameter: 21.5 MILLIMETERS NOMINAL MM, major_thickness: 1.2 MILLIMETERS NOMINAL MM, surface_treatment: PHOSPHATE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5325-01-291-5748, 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
DIN 471-23
NSN: 5325-01-291-5748
FSC: 5325
CAGE: 15526 — METRIC AND MULTISTANDARD COMPONENTS CORP (USA)
SPECIFICATIONS
materialSTEEL
ring_styleEXTERNAL
usage_designEXTERNAL
inside_diameter21.5 MILLIMETERS NOMINAL MM
major_thickness1.2 MILLIMETERS NOMINAL MM
surface_treatmentPHOSPHATE
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating47.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM
cross-sectional_shape_styleRECTANGULAR
NSN5325-01-291-5748
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: DIN 471-23 · 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
•
MATERIAL HARDNESS RATING: 47.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM
•
INSIDE DIAMETER: 21.5 MILLIMETERS NOMINAL MM
•
RING STYLE: EXTERNAL
•
MATERIAL: STEEL
•
SURFACE TREATMENT: PHOSPHATE
•
USAGE DESIGN: EXTERNAL
•
MAJOR THICKNESS: 1.2 MILLIMETERS NOMINAL MM
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS
MATERIAL HARDNESS RATING47.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM
INSIDE DIAMETER21.5 MILLIMETERS NOMINAL MM
RING STYLEEXTERNAL
MATERIALSTEEL
SURFACE TREATMENTPHOSPHATE
USAGE DESIGNEXTERNAL
MAJOR THICKNESS1.2 MILLIMETERS NOMINAL MM
CASEHARDENING INDICATORNOT CASEHARDENED
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
1129InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
A52463-2-01InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
47123InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
DIN471-23X1.2InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DIN 471-23?
DIN 471-23 is a RING,RETAINING.
What parts can replace DIN 471-23?
There are 4 known substitutes for DIN 471-23: 1129, A52463-2-01, 47123 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DIN 471-23?
DIN 471-23 is cataloged in the Federal Logistics Information System under NSN 5325-01-291-5748. 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.
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Last verified: October 2026