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Technical Data Sheet
PartsTable / COMPONENT / NAN525
NAN525 ✓ 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, end_style: D SHAP BELOW INSIDE PERIPHERY, ring_style: STRAIGHT GAP, usage_design: INTERNAL, inside_diameter: 4.912 INCHES MINIMUM AND 5.025 INCHES MAXIMUM IN, major_thickness: 0.123 INCHES MINIMUM AND 0.127 INCHES MAXIMUM 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 5325-00-496-8735, 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
NAN525
NSN: 5325-00-496-8735
FSC: 5325
CAGE: 72800 — EATON CORP ENGINEERED FASTENERS DIV (USA)
SPECIFICATIONS
materialSTEEL
end_styleD SHAP BELOW INSIDE PERIPHERY
ring_styleSTRAIGHT GAP
usage_designINTERNAL
inside_diameter4.912 INCHES MINIMUM AND 5.025 INCHES MAXIMUM IN
major_thickness0.123 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN
strength_ratingERR-060
outside_diameter5.530 INCHES MINIMUM AND 5.655 INCHES MAXIMUM IN
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationSAE 1060 TO 1065 ASSN STD SINGLE MATERIAL RESPONSE
NSN5325-00-496-8735
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: NAN525 · 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
•
END STYLE: D SHAP BELOW INSIDE PERIPHERY
•
STRENGTH RATING: ERR-060
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
MATERIAL: STEEL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 1060 TO 1065 ASSN STD SINGLE MATERIAL RESPONSE
•
INSIDE DIAMETER: 4.912 INCHES MINIMUM AND 5.025 INCHES MAXIMUM IN
•
MAJOR THICKNESS: 0.123 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN
•
RING STYLE: STRAIGHT GAP
TECHNICAL CHARACTERISTICS (FLIS)
END STYLED SHAP BELOW INSIDE PERIPHERY
STRENGTH RATINGERR-060
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MATERIALSTEEL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 1060 TO 1065 ASSN STD SINGLE MATERIAL RESPONSE
INSIDE DIAMETER4.912 INCHES MINIMUM AND 5.025 INCHES MAXIMUM IN
MAJOR THICKNESS0.123 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN
RING STYLESTRAIGHT GAP
USAGE DESIGNINTERNAL
CASEHARDENING INDICATORNOT CASEHARDENED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
128SCAM100-97Interchangeable
Shaft Assy,flap Dr1
interchangeable
58418Interchangeable
Shaft Assy,flap Dr1
interchangeable
58418-1Interchangeable
Shaft Assy,flap Dr1
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NAN525?
NAN525 is a RING,RETAINING.
What parts can replace NAN525?
There are 3 known substitutes for NAN525: 128SCAM100-97, 58418, 58418-1. Substitute compatibility should be verified for your specific system.
What is the NSN for NAN525?
NAN525 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-496-8735. 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