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4R423 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
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Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The FACE,HAMMER,INSERTED is a the manufacturer industrial component. Key specifications include color: BLACK, diameter: 2.500 INCHES NOMINAL IN, material: PLASTIC, unit_type: SCREW-IN, striking_face_shape: FLAT, hardness_designation: HARD. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-01-400-1151, 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
4R423
NSN: 5120-01-400-1151
FSC: 5120
CAGE: 25795 — W.W. GRAINGER, INC. DIV GOVERNMENT SALES DIVISION (USA)
SPECIFICATIONS
colorBLACK
diameter2.500 INCHES NOMINAL IN
materialPLASTIC
unit_typeSCREW-IN
striking_face_shapeFLAT
hardness_designationHARD
NSN5120-01-400-1151
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FACE,HAMMER,INSERTED TITLE COMPONENT PN 4R423 MFR FACE,HAMMER,INSERTED
KEY FEATURES
•
COLOR: BLACK
•
HARDNESS DESIGNATION: HARD
•
DIAMETER: 2.500 INCHES NOMINAL IN
•
STRIKING FACE SHAPE: FLAT
•
UNIT TYPE: SCREW-IN
•
MATERIAL: PLASTIC
TECHNICAL CHARACTERISTICS (FLIS)
COLORBLACK
HARDNESS DESIGNATIONHARD
DIAMETER2.500 INCHES NOMINAL IN
STRIKING FACE SHAPEFLAT
UNIT TYPESCREW-IN
MATERIALPLASTIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
69-178Interchangeable
interchangeable cross-reference
interchangeable
HSF-25HInterchangeable
interchangeable cross-reference
interchangeable
GGG-H-33Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4R423?
4R423 is a FACE,HAMMER,INSERTED.
What parts can replace 4R423?
There are 3 known substitutes for 4R423: 69-178, HSF-25H, GGG-H-33. Substitute compatibility should be verified for your specific system.
What is the NSN for 4R423?
4R423 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-01-400-1151. 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