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544-0258-002 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

544-0258-002: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL, usage_design: EXTERNAL, inside_diameter: 0.750 INCHES NOMINAL IN, major_thickness: 0.042 INCHES NOMINAL IN, special_features: NOTCH 0.094 IN. WIDE CENTRALLY LOCATED BETWEEN 2 GROOVES ON ID IN, surface_treatment: CADMIUM AND CHROMATE.

This part is cataloged in the U.S. Government catalog under NSN 5325-00-674-7625, 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
544-0258-002
NSN: 5325-00-674-7625
FSC: 5325 — Fastening Devices
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL
ring_styleC
usage_designEXTERNAL
inside_diameter0.750 INCHES NOMINAL IN
major_thickness0.042 INCHES NOMINAL IN
special_featuresNOTCH 0.094 IN. WIDE CENTRALLY LOCATED BETWEEN 2 GROOVES ON ID IN
surface_treatmentCADMIUM AND CHROMATE
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationSAE 1065 THRU 1090 ASSN STD SINGLE MATERIAL RESPONSE
NSN5325-00-674-7625
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 544-0258-002 · 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
•
USAGE DESIGN: EXTERNAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 1065 THRU 1090 ASSN STD SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
MAJOR THICKNESS: 0.042 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.750 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: C
TECHNICAL CHARACTERISTICS
USAGE DESIGNEXTERNAL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 1065 THRU 1090 ASSN STD SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MAJOR THICKNESS0.042 INCHES NOMINAL IN
INSIDE DIAMETER0.750 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLEC
SPECIAL FEATURESNOTCH 0.094 IN. WIDE CENTRALLY LOCATED BETWEEN 2 GROOVES ON ID IN
SURFACE TREATMENTCADMIUM AND CHROMATE
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 1
128237Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 544-0258-002?
544-0258-002 is a RING,RETAINING.
What parts can replace 544-0258-002?
There is 1 known substitute for 544-0258-002: 128237. Substitute compatibility should be verified for your specific system.
What is the NSN for 544-0258-002?
544-0258-002 is cataloged in the U.S. Government catalog under NSN 5325-00-674-7625. 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.