PartsTable
Technical Data Sheet
PartsTable / MRO / 258-18
258-18 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

WRENCH,BOX AND OPEN END,COMBINAT. Key specifications include length: 0.500 INCHES NOMINAL IN, material: STEEL OVERALL, end_radius: 0.344 INCHES NOMINAL IN, fork_depth: 1.625 INCHES NOMINAL IN, head_angle: 15.0 DEGREES NOMINAL, insert_size: 0.500-13 UNC CLASS 3A A. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5210-00-204-9115, 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
MRO→ MRO_GENERAL→ 258-18
NSN: 5210-00-204-9115
FSC: 5210
CAGE: 57163 — L.S. STARRETT COMPANY (THE) DIV TOOL DIVISION (USA)
SPECIFICATIONS
length0.500 INCHES NOMINAL IN
materialSTEEL OVERALL
end_radius0.344 INCHES NOMINAL IN
fork_depth1.625 INCHES NOMINAL IN
head_angle15.0 DEGREES NOMINAL
insert_size0.500-13 UNC CLASS 3A A
gaging_range+0.200 TO 18.200 INCHES IN
thread_class3B
hole_diameter0.374 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
overall_width0.875 INCHES NOMINAL IN
thread_length0.875 INCHES NOMINAL ROD CONNECTION IN
indicator_typeDIGITAL READOUT
NSN5210-00-204-9115
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available WRENCH,BOX AND OPEN END,COMBINAT TITLE COMPONENT PN 258-18 MFR WRENCH,BOX AND OPEN EN
KEY FEATURES
•
GAGING RANGE: +0.200 TO 18.200 INCHES IN
•
INDICATOR TYPE: DIGITAL READOUT
TECHNICAL CHARACTERISTICS (FLIS)
GAGING RANGE+0.200 TO 18.200 INCHES IN
SPECIAL FEATURES0.001 IN. GRADUATIONS ON DIGITAL DISPLAY, 0.0001 IN. GRADUATIONS ON MICROMETER HEAD IN
INDICATOR TYPEDIGITAL READOUT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
220604PC4Interchangeable
interchangeable cross-reference
interchangeable
25818Interchangeable
interchangeable cross-reference
interchangeable
B25818Interchangeable
interchangeable cross-reference
interchangeable
9018457Interchangeable
interchangeable cross-reference
interchangeable
931B-5CS0500Interchangeable
interchangeable cross-reference
interchangeable
8 130109AC (CAD)Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 258-18?
258-18 is a WRENCH,BOX AND OPEN END,COMBINAT. It is classified as a MRO (MRO_GENERAL).
What parts can replace 258-18?
There are 16 known substitutes for 258-18: 220604PC4, 25818, B25818 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 258-18?
258-18 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5210-00-204-9115. 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