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2640-128X2 — PLATE,RETAINING,SHAFT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

2640-128X2: PLATE,RETAINING,SHAFT.

The PLATE,RETAINING,SHAFT is a the manufacturer industrial component. Key specifications include shape: ROUND, material: COPPER ALLOY, bore_type: SPLINED, thickness: 0.090 INCHES NOMINAL IN, overall_width: 3.500 INCHES MAXIMUM IN, overall_length: 4.250 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-189-3283, 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
2640-128X2
NSN: 3040-01-189-3283
NIINs: 011893283, 011893330, 011893332, 011893375, 011893404
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
shapeROUND
materialCOPPER ALLOY
bore_typeSPLINED
thickness0.090 INCHES NOMINAL IN
overall_width3.500 INCHES MAXIMUM IN
overall_length4.250 INCHES MAXIMUM IN
extended_length6.031 INCHES NOMINAL IN
spline_quantity10
outside_diameter3.000 INCHES NOMINAL IN
special_featuresBODY MATERIAL: NICKEL ALLOY
aperture_diameter1.812 INCHES NOMINAL IN
overall_thickness1.750 INCHES MAXIMUM IN
NSN3040-01-189-3283
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PLATE,RETAINING,SHAFT TITLE COMPONENT PN 2640-128X2 MFR PLATE,RETAINING,SHAFT
KEY FEATURES
•
MOUNTING HOLE QUANTITY: 6
•
MOUNTING HOLE DIAMETER: 0.149 INCHES NOMINAL IN
•
SHAPE: ROUND
•
OUTSIDE DIAMETER: 3.000 INCHES NOMINAL IN
•
APERTURE DIAMETER: 1.812 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY
•
THICKNESS: 0.090 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY6
MOUNTING HOLE DIAMETER0.149 INCHES NOMINAL IN
SHAPEROUND
OUTSIDE DIAMETER3.000 INCHES NOMINAL IN
APERTURE DIAMETER1.812 INCHES NOMINAL IN
SPECIAL FEATURESMTG HOLE SPACING:EQUALLY SPACED ON 2.500 IN. BOLT CIRCLE DIA IN
MATERIALCOPPER ALLOY
THICKNESS0.090 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
SS845-2007642Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
SS845-2007642 PIECE 12Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 2640-128X2?
2640-128X2 is a PLATE,RETAINING,SHAFT.
What parts can replace 2640-128X2?
There are 2 known substitutes for 2640-128X2: SS845-2007642, SS845-2007642 PIECE 12. Substitute compatibility should be verified for your specific system.
What is the NSN for 2640-128X2?
2640-128X2 is cataloged in the U.S. Government catalog under NSN 3040-01-189-3283. 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.