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Technical Data Sheet
PartsTable / COMPONENT / HMC-308
HMC-308 ✓ Verified by PartsTable
— · COMPONENT
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

The BLOCK,BENCH,MECHANIC'S is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-00-240-7308, 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
HMC-308
NSN: 5120-00-240-7308
FSC: 5120
CAGE: 66858 — WILSON CORPORATION, INC. DBA HOLLINGSWORTH MFG. CO. DIV HOLLINGSWORTH MFG. (USA)
SPECIFICATIONS
general_characteristics_item_descriptionSTEEL; 3 IN. DIA X 1-1/2 IN. H; V-GROOVE ACROSS FACE; OVERSIZE HOLES FROM 1/8 TO 5/8 IN. DIA; FOR HOLDING WORK WHEN DRIVING PINS, DRILLING, ETC. IN
NSN5120-00-240-7308
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BLOCK,BENCH,MECHANIC'S TITLE COMPONENT PN HMC-308 MFR BLOCK,BENCH,MECHANIC'S
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL; 3 IN. DIA X 1-1/2 IN. H; V-GROOVE ACROSS FACE; OVERSIZE HOLES FROM 1/8 TO 5/8 IN. DIA; FOR HOLDING WORK WHEN DRIVING PINS, DRILLING, ETC. IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL; 3 IN. DIA X 1-1/2 IN. H; V-GROOVE ACROSS FACE; OVERSIZE HOLES FROM 1/8 TO 5/8 IN. DIA; FOR HOLDING WORK WHEN DRIVING PINS, DRILLING, ETC. IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
1610L20-004Interchangeable
interchangeable cross-reference
interchangeable
50559Interchangeable
interchangeable cross-reference
interchangeable
SCB70002Interchangeable
interchangeable cross-reference
interchangeable
88-18800Interchangeable
interchangeable cross-reference
interchangeable
AA51146B-1A16AInterchangeable
interchangeable cross-reference
interchangeable
21218Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is HMC-308?
HMC-308 is a BLOCK,BENCH,MECHANIC'S.
What parts can replace HMC-308?
There are 11 known substitutes for HMC-308: 1610L20-004, 50559, SCB70002 and 8 more. Substitute compatibility should be verified for your specific system.
Is HMC-308 still available?
HMC-308 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026