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A4437 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The GEAR,SPUR is a the manufacturer industrial component. Key specifications include swivel: NOT INCLUDED, material: STEEL, dial_size: 2-1/2 IN. DIA IN, head_type: STRAIGHT, bezel_type: THREAD, ring_style: CONCENTRIC.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-01-258-8100, 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
A4437
NSN: 3020-01-258-8100
FSC: 3020
CAGE: 20049 — THE ELECTRIC TACHOMETER CORP. (USA)
SPECIFICATIONS
swivelNOT INCLUDED
materialSTEEL
dial_size2-1/2 IN. DIA IN
head_typeSTRAIGHT
bezel_typeTHREAD
ring_styleCONCENTRIC
scale_namePRESSURE
scale_typeSINGLE
design_typeSTRAIGHT
joint_styleDIAGONAL JOINT
scale_range+0.0 TO 4000.0 POUNDS PRESSURE PER SQUARE INCH LBS
pointer_typeINDICATING
NSN3020-01-258-8100
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR,SPUR TITLE COMPONENT PN A4437 MFR GEAR,SPUR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
A52491-75Interchangeable
interchangeable cross-reference
interchangeable
701Interchangeable
interchangeable cross-reference
interchangeable
A2027Interchangeable
interchangeable cross-reference
interchangeable
BS4-1903PC12Interchangeable
interchangeable cross-reference
interchangeable
BS4-1897PC12Interchangeable
interchangeable cross-reference
interchangeable
G27Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A4437?
A4437 is a GEAR,SPUR.
What parts can replace A4437?
There are 16 known substitutes for A4437: A52491-75, 701, A2027 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A4437?
A4437 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-01-258-8100. 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