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PartsTable / COMPONENT / STSKG300T005
STSKG300T005 ✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The BEARING,PLAIN,ROD END is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 ROD END BODY, shank_style: EXTERNALLY THREADED, thread_class: 3A A, bore_diameter: 0.3120 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN, overall_length: 2.6875 INCHES NOMINAL IN, hardness_rating: 36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM ROD END BODY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-904-9056, 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
STSKG300T005
NSN: 3120-00-904-9056
FSC: 3120
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 ROD END BODY
shank_styleEXTERNALLY THREADED
thread_class3A A
bore_diameter0.3120 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
overall_length2.6875 INCHES NOMINAL IN
hardness_rating36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM ROD END BODY
thread_diameter0.438 INCHES NOMINAL IN
special_featuresNAS559 STD KEYWAY IN SHANK
style_designatorBALL TYPE
thread_directionRIGHT-HAND
surface_treatmentCHROMIUM INNER MEMBER
inner_member_width0.8080 INCHES MINIMUM AND 0.8130 INCHES MAXIMUM IN
NSN3120-00-904-9056
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: STSKG300T005 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HARDNESS RATING: 23.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM RACE INSERT
•
SURFACE TREATMENT: CADMIUM ROD END BODY
•
MATERIAL: STEEL COMP 4130 ROD END BODY
•
BORE DIAMETER: 0.3120 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
HARDNESS RATING23.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM RACE INSERT
HARDNESS RATING55.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM INNER MEMBER
SURFACE TREATMENTCADMIUM ROD END BODY
SURFACE TREATMENTCHROMIUM INNER MEMBER
MATERIALSTEEL COMP 4130 ROD END BODY
BORE DIAMETER0.3120 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM ROD END BODY
SPECIAL FEATURESNAS559 STD KEYWAY IN SHANK
TEST DATA DOCUMENT81349-MIL-I-6868 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE RACE LINER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
77387Interchangeable
interchangeable cross-reference
interchangeable
C10093-1Interchangeable
interchangeable cross-reference
interchangeable
20510Interchangeable
interchangeable cross-reference
interchangeable
MXJNKV5Interchangeable
Same NIIN cross-reference
interchangeable
KBNE5-300WInterchangeable
Same NIIN cross-reference
interchangeable
TFN205DInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is STSKG300T005?
STSKG300T005 is a BEARING,PLAIN,ROD END.
What parts can replace STSKG300T005?
There are 7 known substitutes for STSKG300T005: 77387, C10093-1, 20510 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for STSKG300T005?
STSKG300T005 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-904-9056. 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