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98543A120 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

98543A120: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL, usage_design: EXTERNAL, inside_diameter: 12.54 MILLIMETERS MINIMUM AND 12.68 MILLIMETERS MAXIMUM MM, outside_diameter: 28.7 MILLIMETERS NOMINAL MM, material_hardness_rating: 46.0 ROCKWELL C MINIMUM, cross-sectional_shape_style: RECTANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-628-5174, 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
98543A120
NSN: 5325-01-628-5174
FSC: 5325 — Fastening Devices
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL
ring_styleE
usage_designEXTERNAL
inside_diameter12.54 MILLIMETERS MINIMUM AND 12.68 MILLIMETERS MAXIMUM MM
outside_diameter28.7 MILLIMETERS NOMINAL MM
material_hardness_rating46.0 ROCKWELL C MINIMUM
cross-sectional_shape_styleRECTANGULAR
part_name_assigned_by_controlling_agencyRING,RETAINING
NSN5325-01-628-5174
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 98543A120 · 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
•
MATERIAL HARDNESS RATING: 46.0 ROCKWELL C MINIMUM
•
USAGE DESIGN: EXTERNAL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OUTSIDE DIAMETER: 28.7 MILLIMETERS NOMINAL MM
•
INSIDE DIAMETER: 12.54 MILLIMETERS MINIMUM AND 12.68 MILLIMETERS MAXIMUM MM
•
RING STYLE: E
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
MATERIAL HARDNESS RATING46.0 ROCKWELL C MINIMUM
USAGE DESIGNEXTERNAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OUTSIDE DIAMETER28.7 MILLIMETERS NOMINAL MM
INSIDE DIAMETER12.54 MILLIMETERS MINIMUM AND 12.68 MILLIMETERS MAXIMUM MM
RING STYLEE
PART NAME ASSIGNED BY CONTROLLING AGENCYRING,RETAINING
MATERIALSTEEL
OTHER ITEMS IN FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 98543A120?
98543A120 is a RING,RETAINING.
What is the NSN for 98543A120?
98543A120 is cataloged in the U.S. Government catalog under NSN 5325-01-628-5174. 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.