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6LC99 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

6LC99: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL, end_style: VERTEX BELOW CENTER, ring_style: EXTERNAL, inside_diameter: 2.625 INCHES NOMINAL IN, major_thickness: 0.093 INCHES NOMINAL IN, special_features: OXIDE BLACK FINISH -TENSILE 150000 PSI. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-656-1440, 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
6LC99
NSN: 5325-01-656-1440
FSC: 5325 — Fastening Devices
CAGE: 25795 — W.W. GRAINGER, INC. DIV GOVERNMENT SALES DIVISION (USA)
SPECIFICATIONS
materialSTEEL
end_styleVERTEX BELOW CENTER
ring_styleEXTERNAL
inside_diameter2.625 INCHES NOMINAL IN
major_thickness0.093 INCHES NOMINAL IN
special_featuresOXIDE BLACK FINISH -TENSILE 150000 PSI
surface_treatmentOXIDE
part_name_assigned_by_controlling_agencyINTERNAL RETAINING RING
NSN5325-01-656-1440
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 6LC99 · 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
•
END STYLE: VERTEX BELOW CENTER
•
MAJOR THICKNESS: 0.093 INCHES NOMINAL IN
•
INSIDE DIAMETER: 2.625 INCHES NOMINAL IN
•
RING STYLE: EXTERNAL
•
SURFACE TREATMENT: OXIDE
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
END STYLEVERTEX BELOW CENTER
MAJOR THICKNESS0.093 INCHES NOMINAL IN
INSIDE DIAMETER2.625 INCHES NOMINAL IN
RING STYLEEXTERNAL
SPECIAL FEATURESOXIDE BLACK FINISH -TENSILE 150000 PSI
SURFACE TREATMENTOXIDE
PART NAME ASSIGNED BY CONTROLLING AGENCYINTERNAL RETAINING RING
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 2
11B5190588-22Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
11B5190588Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 6LC99?
6LC99 is a RING,RETAINING.
What parts can replace 6LC99?
There are 2 known substitutes for 6LC99: 11B5190588-22, 11B5190588. Substitute compatibility should be verified for your specific system.
What is the NSN for 6LC99?
6LC99 is cataloged in the U.S. Government catalog under NSN 5325-01-656-1440. 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.