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186248 — SHAFT,STRAIGHT

✓ Government record, cited
Hama · BALL BEARING
PRODUCT OVERVIEW

186248: SHAFT,STRAIGHT.

The SHAFT,STRAIGHT is a Hama industrial component. Key specifications include material: STEEL COMP 302 OR STEEL COMP 430 OR STEEL COMP 303 FASTENER, head_style: BUTTON, head_height: 0.086 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.303 INCHES MINIMUM AND 0.321 INCHES MAXIMUM IN, thread_length: 0.282 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-390-7169, 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
186248
NSN: 3120-00-390-7169
NIINs: 003907169, 004130056, 004331666
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OR STEEL COMP 430 OR STEEL COMP 303 FASTENER
head_styleBUTTON
head_height0.086 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.303 INCHES MINIMUM AND 0.321 INCHES MAXIMUM IN
thread_length0.282 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
fastener_length0.344 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
locking_featurePELLET OR STRIP THREADS
special_features1/4 X 1/32 IN.BOSS END OF SHAFT IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE FASTENER
internal_drive_styleCROSS RECESS TYPE 1
NSN3120-00-390-7169
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 186248 · Hama ⚠ 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
•
SURFACE FINISH: 32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
•
CORNER SHAPE: SQUARE ALL CORNERS
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BODY OUTSIDE DIAMETER: 0.3735 INCHES MINIMUM AND 0.3740 INCHES MAXIMUM IN
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STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
BODY INSIDE DIAMETER: 0.2495 INCHES MINIMUM AND 0.2505 INCHES MAXIMUM IN
•
ANTIROTATION/LUBRICATION TYPE AND QUANTITY: 1 HOLE
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
SURFACE FINISH32.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER0.3735 INCHES MINIMUM AND 0.3740 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH1.0500 INCHES MINIMUM AND 1.0700 INCHES MAXIMUM IN
BODY INSIDE DIAMETER0.2495 INCHES MINIMUM AND 0.2505 INCHES MAXIMUM IN
ANTIROTATION/LUBRICATION TYPE AND QUANTITY1 HOLE
MATERIALCOPPER OVERALL
HOLE DIAMETER0.0710 INCHES MINIMUM AND 0.0760 INCHES MAXIMUM FIRST IN
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 186248?
186248 is a SHAFT,STRAIGHT manufactured by Hama.
What is the NSN for 186248?
186248 is cataloged in the U.S. Government catalog under NSN 3120-00-390-7169. This indicates validated use in U.S. government and defense supply chains.
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