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B4757 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
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PRODUCT OVERVIEW

The THERMOSTAT AND FLANGE ASSEMBLY is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY ILLUMINATION DIRECTING DEVICE, lens_type: FLAT, NARROW SINGLE LIGHT FIRST POSITION HORIZONTAL, lens_color: RED SINGLE LIGHT FIRST POSITION HORIZONTAL, overall_width: 3.219 INCHES NOMINAL IN, overall_height: 0.438 INCHES NOMINAL IN, overall_length: 3.219 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6210-00-229-5176, 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
B4757
NSN: 6210-00-229-5176
FSC: 6210
CAGE: 72914 — GRIMES AEROSPACE COMPANY (USA)
SPECIFICATIONS
materialCOPPER ALLOY ILLUMINATION DIRECTING DEVICE
lens_typeFLAT, NARROW SINGLE LIGHT FIRST POSITION HORIZONTAL
lens_colorRED SINGLE LIGHT FIRST POSITION HORIZONTAL
lens_quantity1
overall_width3.219 INCHES NOMINAL IN
overall_height0.438 INCHES NOMINAL IN
overall_length3.219 INCHES NOMINAL IN
mounting_methodFLANGE LOCATION NOT OTHERWISE SPECIFIED
special_featuresFRONT MOUNTED; FURNISHED ITEMS AND QUANTITY: KNOB 1
style_designatorFULL FIXTURE POST TYPE
surface_treatmentPAINT BODY
transmitted_light_colorRED SINGLE LIGHT FIRST POSITION HORIZONTAL FULL DISPLAY DIVISION A
NSN6210-00-229-5176
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available THERMOSTAT AND FLANGE ASSEMBLY TITLE COMPONENT PN B4757 MFR THERMOSTAT AND FLANGE
KEY FEATURES
•
LAMP BASE TYPE ACCOMMODATED: MIDGET FLANGED
•
MOUNTING METHOD: PUSH-IN LENS
•
LENS FACE SURFACE CONDITION: SMOOTH SINGLE LIGHT FIRST POSITION HORIZONTAL
•
MATERIAL: COPPER ALLOY ILLUMINATION DIRECTING DEVICE
•
SURFACE TREATMENT: PAINT ILLUMINATION DIRECTING DEVICE
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT0.438 INCHES NOMINAL IN
LAMP BASE TYPE ACCOMMODATEDMIDGET FLANGED
OVERALL WIDTH3.219 INCHES NOMINAL IN
MOUNTING METHODPUSH-IN LENS
LENS FACE SURFACE CONDITIONSMOOTH SINGLE LIGHT FIRST POSITION HORIZONTAL
MATERIALCOPPER ALLOY ILLUMINATION DIRECTING DEVICE
MATERIALCOPPER ALLOY BODY
SURFACE TREATMENTPAINT ILLUMINATION DIRECTING DEVICE
LENS TYPEFLAT, NARROW SINGLE LIGHT FIRST POSITION HORIZONTAL
SPECIAL FEATURESFRONT MOUNTED; FURNISHED ITEMS AND QUANTITY: KNOB 1
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
B4757Interchangeable
interchangeable cross-reference
interchangeable
4462Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B4757?
B4757 is a THERMOSTAT AND FLANGE ASSEMBLY.
What parts can replace B4757?
There are 2 known substitutes for B4757: B4757, 4462. Substitute compatibility should be verified for your specific system.
What is the NSN for B4757?
B4757 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6210-00-229-5176. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026