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Technical Data Sheet
PartsTable / COMPONENT / NAS73
NAS73 ✓ 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 OR STEEL COMP 8630 OVERALL, shank_style: EXTERNALLY THREADED, corner_shape: SQUARE ALL CORNERS, flange_width: 0.0550 INCHES MINIMUM AND 0.0600 INCHES MAXIMUM IN, thread_class: 3A A, bore_diameter: 0.6245 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-066-8359, 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
NAS73
NSN: 3120-00-066-8359
FSC: 3120
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OR STEEL COMP 8630 OVERALL
shank_styleEXTERNALLY THREADED
corner_shapeSQUARE ALL CORNERS
flange_width0.0550 INCHES MINIMUM AND 0.0600 INCHES MAXIMUM IN
thread_class3A A
bore_diameter0.6245 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
overall_length0.6350 INCHES NOMINAL IN
surface_finish63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
hardness_rating28.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM RACE INSERT
thread_diameter0.625 INCHES NOMINAL IN
special_featuresID AND OD TO BE PARALLEL AND CONCENTRIC WITHIN 0.0030 TIR
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
NSN3120-00-066-8359
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: NAS73 · 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
•
BODY INSIDE DIAMETER: 0.1895 INCHES MINIMUM AND 0.1910 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
CORNER SHAPE: SQUARE INSIDE LEFT CORNER
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6050 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
•
SURFACE GROOVE LOCATION AND QUANTITY: 1 EXTERNAL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
BODY INSIDE DIAMETER0.1895 INCHES MINIMUM AND 0.1910 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
CORNER SHAPESQUARE INSIDE LEFT CORNER
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6050 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
SURFACE GROOVE LOCATION AND QUANTITY1 EXTERNAL
CORNER SHAPECHAMFERED OUTSIDE LEFT CORNER
CORNER SHAPESQUARE INSIDE RIGHT CORNER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CORNER SHAPECHAMFERED OUTSIDE RIGHT CORNER
LUBRICANT ACCOMMODATION STYLEGROOVED CIRCULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES

No verified substitutes available.

LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NAS73?
NAS73 is a BEARING,PLAIN,ROD END.
What is the NSN for NAS73?
NAS73 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-066-8359. 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