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H549D2X1 — PLATE,RETAINING,SHAFT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

H549D2X1: PLATE,RETAINING,SHAFT.

The PLATE,RETAINING,SHAFT is a the manufacturer industrial component. Key specifications include shape: ROUND, material: STEEL, thickness: 0.400 INCHES NOMINAL IN, outside_diameter: 4.030 INCHES NOMINAL IN, special_features: MTG HOLE SPACING: 1.312 INCH BETWEEN CENTERS IN, aperture_diameter: 0.735 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-00-398-6942, 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
H549D2X1
NSN: 3040-00-398-6942
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 16712 — SIEMENS ENERGY, INC. (USA)
SPECIFICATIONS
shapeROUND
materialSTEEL
thickness0.400 INCHES NOMINAL IN
outside_diameter4.030 INCHES NOMINAL IN
special_featuresMTG HOLE SPACING: 1.312 INCH BETWEEN CENTERS IN
aperture_diameter0.735 INCHES NOMINAL IN
mounting_hole_diameter0.375 INCHES NOMINAL IN
mounting_hole_quantity5
NSN3040-00-398-6942
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PLATE,RETAINING,SHAFT TITLE COMPONENT PN H549D2X1 MFR PLATE,RETAINING,SHAFT
KEY FEATURES
•
MOUNTING HOLE QUANTITY: 5
•
MOUNTING HOLE DIAMETER: 0.375 INCHES NOMINAL IN
•
SHAPE: ROUND
•
OUTSIDE DIAMETER: 4.030 INCHES NOMINAL IN
•
APERTURE DIAMETER: 0.735 INCHES NOMINAL IN
•
MATERIAL: STEEL
•
THICKNESS: 0.400 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY5
MOUNTING HOLE DIAMETER0.375 INCHES NOMINAL IN
SHAPEROUND
OUTSIDE DIAMETER4.030 INCHES NOMINAL IN
APERTURE DIAMETER0.735 INCHES NOMINAL IN
SPECIAL FEATURESMTG HOLE SPACING: 1.312 INCH BETWEEN CENTERS IN
MATERIALSTEEL
THICKNESS0.400 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: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is H549D2X1?
H549D2X1 is a PLATE,RETAINING,SHAFT.
What is the NSN for H549D2X1?
H549D2X1 is cataloged in the U.S. Government catalog under NSN 3040-00-398-6942. 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.