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HO-145ST ZD — 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: INTERNAL, usage_design: INTERNAL, outside_diameter: 0.498 INCHES NOMINAL IN, surface_treatment: CADMIUM, end_item_identification: MK38 COMMON BULK ITEM LIST. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5325-01-552-3338, 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
HO-145ST ZD
NSN: 5325-01-552-3338
FSC: 5325
CAGE: 07382 — ROTOR CLIP COMPANY, INC. (USA)
SPECIFICATIONS
materialSTEEL
ring_styleINTERNAL
usage_designINTERNAL
outside_diameter0.498 INCHES NOMINAL IN
surface_treatmentCADMIUM
end_item_identificationMK38 COMMON BULK ITEM LIST
NSN5325-01-552-3338
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: HO-145ST ZD · 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: INTERNAL
•
OUTSIDE DIAMETER: 0.498 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM
•
MATERIAL: STEEL
•
RING STYLE: INTERNAL
TECHNICAL CHARACTERISTICS
USAGE DESIGNINTERNAL
OUTSIDE DIAMETER0.498 INCHES NOMINAL IN
END ITEM IDENTIFICATIONMK38 COMMON BULK ITEM LIST
SURFACE TREATMENTCADMIUM
MATERIALSTEEL
RING STYLEINTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
3000-145CBInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
490514InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
N50000145SZDBInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
R271NAB0145NN056NNCF1InterchangeableGOVERNMENT 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 HO-145ST ZD?
HO-145ST ZD is a RING,RETAINING.
What parts can replace HO-145ST ZD?
There are 4 known substitutes for HO-145ST ZD: 3000-145CB, 490514, N50000145SZDB and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for HO-145ST ZD?
HO-145ST ZD is cataloged in the Federal Logistics Information System under NSN 5325-01-552-3338. 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: October 2026