PartsTable
Technical Data Sheet
Download PDF

MS21242S06K — BEARING,PLAIN,ROD END

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

MS21242S06K: BEARING,PLAIN,ROD END.

The BEARING,PLAIN,ROD END is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4340 ROD END BODY, shank_style: EXTERNALLY THREADED, thread_class: 3A A, bore_diameter: 0.3745 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN, overall_length: 2.4355 INCHES MINIMUM AND 2.4655 INCHES MAXIMUM IN, hardness_rating: 39.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM ROD END BODY. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-151-5013, 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
MS21242S06K
NSN: 3120-00-151-5013
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 4340 ROD END BODY
shank_styleEXTERNALLY THREADED
thread_class3A A
bore_diameter0.3745 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
overall_length2.4355 INCHES MINIMUM AND 2.4655 INCHES MAXIMUM IN
hardness_rating39.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM ROD END BODY
thread_diameter0.375 INCHES NOMINAL IN
special_featuresNAS 559 KEYWAY IN SHANK
style_designatorBALL TYPE
thread_directionRIGHT-HAND
surface_treatmentCADMIUM ROD END BODY
inner_member_width0.4980 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
NSN3120-00-151-5013
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: MS21242S06K · 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
•
SHANK THREAD LENGTH: 1.1560 INCHES MINIMUM AND 1.2180 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE ROD END BODY
•
BORE CENTER TO SHANK END DISTANCE: 1.9280 INCHES MINIMUM AND 1.9480 INCHES MAXIMUM IN
•
INNER MEMBER WIDTH: 0.4980 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
•
HARDNESS RATING: 39.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM ROD END BODY
•
OUTER MEMBER WIDTH: 0.4110 INCHES MINIMUM AND 0.4210 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: BALL TYPE
•
THREAD DIAMETER: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SHANK THREAD LENGTH1.1560 INCHES MINIMUM AND 1.2180 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE ROD END BODY
BORE CENTER TO SHANK END DISTANCE1.9280 INCHES MINIMUM AND 1.9480 INCHES MAXIMUM IN
INNER MEMBER WIDTH0.4980 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
HARDNESS RATING39.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM ROD END BODY
OUTER MEMBER WIDTH0.4110 INCHES MINIMUM AND 0.4210 INCHES MAXIMUM IN
STYLE DESIGNATORBALL TYPE
THREAD DIAMETER0.375 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5630 ASSN STD SINGLE MATERIAL RESPONSE INNER MEMBER
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5528 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5643 ASSN STD 2ND MATERIAL RESPONSE OR AISI 410 ASSN STD 3RD MATERIAL RESPONSE RACE INSERT
SUBSTITUTES & CROSS-REFERENCES 6
AS81935/1Reference document
Same NSN cross-reference
Reference document — Secondary reference
REMS12ATC12Reference document
Same NSN cross-reference
Reference document — Secondary reference
M81935/1-6KReference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AS81935/1Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
AS81935Reference document
Same NSN cross-reference
Reference document — Secondary reference
10085904Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
Ready to buy MS21242S06K?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is MS21242S06K?
MS21242S06K is a BEARING,PLAIN,ROD END.
What parts can replace MS21242S06K?
There are 6 known substitutes for MS21242S06K: AS81935/1, REMS12ATC12, M81935/1-6K and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21242S06K?
MS21242S06K is cataloged in the U.S. Government catalog under NSN 3120-00-151-5013. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — MS21242S06K

✓ 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.