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309720 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

309720: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL COMP E52100 OVERALL, bore_shape: STRAIGHT, bore_diameter: 0.3750 INCHES NOMINAL IN, overall_width: 0.2810 INCHES NOMINAL IN, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-470-9539, 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
309720
NSN: 5305-00-470-9539
NIINs: 004709539, 010037855
FSC: 5305 — Screws
CAGE: 1UVT5 — BRP US INC (USA)
SPECIFICATIONS
materialSTEEL COMP E52100 OVERALL
bore_shapeSTRAIGHT
bore_diameter0.3750 INCHES NOMINAL IN
overall_width0.2810 INCHES NOMINAL IN
seal_quantity2
load_directionRADIAL
surface_finishGROUND
special_featuresELECTRIC MOTOR QUALITY
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
bearing_seal_typeCONTACT
lubrication_materialGREASE
calibration_designatorC
NSN5305-00-470-9539
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 309720 · 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
•
HEAD HEIGHT: 0.150 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.312 INCHES NOMINAL IN
•
SHOULDER LENGTH: 0.843 INCHES NOMINAL FIRST SHOULDER IN
•
SHOULDER DIAMETER: 0.250 INCHES NOMINAL FIRST SHOULDER IN
•
THREAD LENGTH: 0.468 INCHES NOMINAL IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: FILLISTER
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.150 INCHES NOMINAL IN
FASTENER LENGTH1.312 INCHES NOMINAL IN
SHOULDER LENGTH0.843 INCHES NOMINAL FIRST SHOULDER IN
SHOULDER DIAMETER0.250 INCHES NOMINAL FIRST SHOULDER IN
THREAD LENGTH0.468 INCHES NOMINAL IN
SHOULDER SHAPEROUND FIRST SHOULDER
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEFILLISTER
THREAD DIRECTIONRIGHT-HAND
INTERNAL DRIVE STYLESLOT
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 309720?
309720 is a BEARING,BALL,ANNULAR.
What is the NSN for 309720?
309720 is cataloged in the U.S. Government catalog under NSN 5305-00-470-9539. 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.