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Technical Data Sheet
PartsTable / COMPONENT / A58439
A58439 ✓ 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: INTERNAL SELF-LOCKING, usage_design: INTERNAL, inside_diameter: 0.232 INCHES MINIMUM AND 0.242 INCHES MAXIMUM IN, major_thickness: 0.009 INCHES MINIMUM AND 0.011 INCHES MAXIMUM IN, special_features: FITS 0.437 IN. TO 0.439 IN.

HOUSING 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 5325-00-714-0629, 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
A58439
NSN: 5325-00-714-0629
FSC: 5325
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
materialSTEEL
ring_styleINTERNAL SELF-LOCKING
usage_designINTERNAL
inside_diameter0.232 INCHES MINIMUM AND 0.242 INCHES MAXIMUM IN
major_thickness0.009 INCHES MINIMUM AND 0.011 INCHES MAXIMUM IN
special_featuresFITS 0.437 IN. TO 0.439 IN. HOUSING IN
surface_treatmentPHOSPHATE OR OXIDE
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationSAE 1060 THRU 1090 ASSN STD SINGLE MATERIAL RESPONSE
NSN5325-00-714-0629
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A58439 · 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
•
MAJOR THICKNESS: 0.009 INCHES MINIMUM AND 0.011 INCHES MAXIMUM IN
•
RING STYLE: INTERNAL SELF-LOCKING
•
USAGE DESIGN: INTERNAL
•
MATERIAL: STEEL
•
SURFACE TREATMENT: PHOSPHATE OR OXIDE
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 1060 THRU 1090 ASSN STD SINGLE MATERIAL RESPONSE
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS (FLIS)
MAJOR THICKNESS0.009 INCHES MINIMUM AND 0.011 INCHES MAXIMUM IN
SPECIAL FEATURESFITS 0.437 IN. TO 0.439 IN. HOUSING IN
RING STYLEINTERNAL SELF-LOCKING
USAGE DESIGNINTERNAL
MATERIALSTEEL
SURFACE TREATMENTPHOSPHATE OR OXIDE
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 1060 THRU 1090 ASSN STD SINGLE MATERIAL RESPONSE
CASEHARDENING INDICATORNOT CASEHARDENED
INSIDE DIAMETER0.232 INCHES MINIMUM AND 0.242 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
43950Interchangeable
interchangeable cross-reference
interchangeable
890816Interchangeable
interchangeable cross-reference
interchangeable
50054-3Interchangeable
interchangeable cross-reference
interchangeable
7451226Interchangeable
interchangeable cross-reference
interchangeable
A-1502692Interchangeable
interchangeable cross-reference
interchangeable
E1FZ 4221-BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A58439?
A58439 is a RING,RETAINING.
What parts can replace A58439?
There are 12 known substitutes for A58439: 43950, 890816, 50054-3 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A58439?
A58439 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-714-0629. 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