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3103-56-4 — SWITCH,THERMOSTATIC

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

3103-56-4: SWITCH,THERMOSTATIC.

The SWITCH,THERMOSTATIC is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_height: 0.290 INCHES MAXIMUM IN, corner_shape: SQUARE INSIDE LEFT CORNER, flange_width: 0.0690 INCHES MINIMUM AND 0.0750 INCHES MAXIMUM IN, body_diameter: 0.605 INCHES NOMINAL IN, terminal_type: TAB, SOLDER LUG. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-008-4141, 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
MRO→ MRO_GENERAL→ 3103-56-4
NSN: 3120-00-008-4141
NIINs: 000084141, 011483299
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 82577 — RAYTHEON COMPANY DBA RAYTHEON (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_height0.290 INCHES MAXIMUM IN
corner_shapeSQUARE INSIDE LEFT CORNER
flange_width0.0690 INCHES MINIMUM AND 0.0750 INCHES MAXIMUM IN
body_diameter0.605 INCHES NOMINAL IN
terminal_typeTAB, SOLDER LUG
overall_height0.605 INCHES NOMINAL IN
overall_length1.375 INCHES NOMINAL IN
surface_finish63.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
mounting_methodBRACKET(S) AND UNTHREADED HOLE(S)
style_designatorDISC W/FLANGE
features_providedHERMETICALLY SEALED CASE
NSN3120-00-008-4141
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 3103-56-4 · OEM ⚠ 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: 125.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE
•
CORNER SHAPE: SQUARE INSIDE RIGHT CORNER
TECHNICAL CHARACTERISTICS
SURFACE FINISH125.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE
SURFACE FINISH125.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE
SURFACE FINISH125.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
SURFACE FINISH125.0 MICROINCHES RIGHT END SURFACE OF BODY
SURFACE FINISH125.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF FLANGE
SURFACE FINISH63.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
CORNER SHAPESQUARE INSIDE RIGHT CORNER
CORNER SHAPESQUARE LEFT FLANGE BODY CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
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 3103-56-4?
3103-56-4 is a SWITCH,THERMOSTATIC. It is classified as a MRO (MRO_GENERAL).
What is the NSN for 3103-56-4?
3103-56-4 is cataloged in the U.S. Government catalog under NSN 3120-00-008-4141. 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.