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31558 — COUNTERSINK

✓ Government record, cited
Legrand · COMPONENT
PRODUCT OVERVIEW

31558: COUNTERSINK.

The COUNTERSINK is a Legrand industrial component. Key specifications include material: STEEL OVERALL, shank_style: TAPER-SQUARE, body_diameter: 0.625 INCHES NOMINAL IN, included_angle: 81.5 DEGREES NOMINAL, overall_length: 3.000 INCHES MINIMUM AND 4.500 INCHES MAXIMUM IN, hardness_rating: 52.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5133-00-224-9103, 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
31558
NSN: 5133-00-224-9103
NIINs: 002249103, 002634587
FSC: 5133 — Drill Bits, Counterbores, and Countersinks: Hand and Machine
CAGE: 39068 — MAYHEW STEEL PRODUCTS INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
shank_styleTAPER-SQUARE
body_diameter0.625 INCHES NOMINAL IN
included_angle81.5 DEGREES NOMINAL
overall_length3.000 INCHES MINIMUM AND 4.500 INCHES MAXIMUM IN
hardness_rating52.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM
cutting_end_styleROSE
center_hole_diameter0.357 INCHES MINIMUM AND 0.367 INCHES MAXIMUM IN
cross-sectional_height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
nondefinitive_spec/std_data2 TYPE AND B CLASS AND 5/8 SIZE
NSN5133-00-224-9103
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Legrand COUNTERSINK TITLE COMPONENT PN 31558 MFR Legrand COUNTERSINK
KEY FEATURES
•
BODY DIAMETER: 0.625 INCHES NOMINAL IN
•
CUTTING END STYLE: ROSE
•
HARDNESS RATING: 52.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND B CLASS AND 5/8 SIZE
•
SHANK STYLE: TAPER-SQUARE
•
INCLUDED ANGLE: 81.5 DEGREES NOMINAL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
BODY DIAMETER0.625 INCHES NOMINAL IN
CUTTING END STYLEROSE
HARDNESS RATING52.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM
OVERALL LENGTH3.000 INCHES MINIMUM AND 4.500 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA2 TYPE AND B CLASS AND 5/8 SIZE
SHANK STYLETAPER-SQUARE
INCLUDED ANGLE81.5 DEGREES NOMINAL
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
GGG-C-613 TY2CLBSZ5/8Reference document
Same NSN cross-reference
Reference document — Secondary reference
GGG-C-613Reference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 31558?
31558 is a COUNTERSINK manufactured by Legrand.
What parts can replace 31558?
There are 2 known substitutes for 31558: GGG-C-613 TY2CLBSZ5/8, GGG-C-613. Substitute compatibility should be verified for your specific system.
What is the NSN for 31558?
31558 is cataloged in the U.S. Government catalog under NSN 5133-00-224-9103. 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.