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170A657-001 — COLLAR,SHAFT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

170A657-001: COLLAR,SHAFT.

The COLLAR,SHAFT is a the manufacturer industrial component. Key specifications include material: STEEL, thickness: 2.078 INCHES NOMINAL IN, bore_diameter: 1.5000 INCHES NOMINAL IN, outside_diameter: 2.250 INCHES NOMINAL IN, style_designator: ROUND STEPPED, small_end_diameter: 1.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-00-160-9469, 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
170A657-001
NSN: 3040-00-160-9469
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 01289 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
materialSTEEL
thickness2.078 INCHES NOMINAL IN
bore_diameter1.5000 INCHES NOMINAL IN
outside_diameter2.250 INCHES NOMINAL IN
style_designatorROUND STEPPED
small_end_diameter1.750 INCHES NOMINAL IN
nominal_thread_size0.190 INCHES SINGLE HOLE IN
securing_hole_quantity2
largest_diameter_length0.438 INCHES NOMINAL IN
securing_hole_type_and_locationTHREADED ALL HOLES
screw_thread_series_designator_and_locationALL HOLES UNIFIED NATIONAL COARSE (UNC)
angle_between_centerlines_of_securing_holes_in_deg180.0
NSN3040-00-160-9469
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COLLAR,SHAFT TITLE COMPONENT PN 170A657-001 MFR COLLAR,SHAFT
KEY FEATURES
•
SECURING HOLE TYPE AND LOCATION: THREADED ALL HOLES
•
LARGEST DIAMETER LENGTH: 0.438 INCHES NOMINAL IN
•
STYLE DESIGNATOR: ROUND STEPPED
•
SCREW THREAD SERIES DESIGNATOR AND LOCATION: ALL HOLES UNIFIED NATIONAL COARSE (UNC)
•
OUTSIDE DIAMETER: 2.250 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.190 INCHES SINGLE HOLE IN
•
ANGLE BETWEEN CENTERLINES OF SECURING HOLES IN DEG: 180.0
•
SMALL END DIAMETER: 1.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SECURING HOLE TYPE AND LOCATIONTHREADED ALL HOLES
LARGEST DIAMETER LENGTH0.438 INCHES NOMINAL IN
STYLE DESIGNATORROUND STEPPED
SCREW THREAD SERIES DESIGNATOR AND LOCATIONALL HOLES UNIFIED NATIONAL COARSE (UNC)
OUTSIDE DIAMETER2.250 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.190 INCHES SINGLE HOLE IN
ANGLE BETWEEN CENTERLINES OF SECURING HOLES IN DEG180.0
SMALL END DIAMETER1.750 INCHES NOMINAL IN
SECURING HOLE QUANTITY2
BORE DIAMETER1.5000 INCHES NOMINAL IN
OTHER ITEMS IN FSC 3040 — Miscellaneous Power Transmission Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3040-00-001-0046 3040-00-001-0047 3040-00-001-0048 3040-00-001-0068 3040-00-001-0077 3040-00-001-0078 3040-00-001-0089 3040-00-001-1224
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 170A657-001?
170A657-001 is a COLLAR,SHAFT.
What is the NSN for 170A657-001?
170A657-001 is cataloged in the U.S. Government catalog under NSN 3040-00-160-9469. 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.