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Technical Data Sheet
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B-3972 — Technical Data Sheet

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— · 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 BELTS,V,MATCHED SET is a the manufacturer industrial component. Key specifications include material: FIBER AND RUBBER BODY, performance_type: STANDARD CAPACITY, style_designator: PLAIN, nominal_pitch_length: 51.800 INCHES IN, strengthening_feature: FIBER CORD. This part is cataloged in the Federal Logistics Information System under NSN 3030-00-528-0921, 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
B-3972
NSN: 3030-00-528-0921
FSC: 3030
CAGE: 14541 — COOPER MACHINERY SERVICES LLC (USA)
SPECIFICATIONS
materialFIBER AND RUBBER BODY
belt_quantity2
performance_typeSTANDARD CAPACITY
style_designatorPLAIN
cross-sectional_sizeB
nominal_pitch_length51.800 INCHES IN
strengthening_featureFIBER CORD
NSN3030-00-528-0921
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BELTS,V,MATCHED SET TITLE COMPONENT PN B-3972 MFR BELTS,V,MATCHED SET
KEY FEATURES
•
CROSS-SECTIONAL SIZE: B
•
PERFORMANCE TYPE: STANDARD CAPACITY
•
MATERIAL: FIBER AND RUBBER BODY
•
NOMINAL PITCH LENGTH: 51.800 INCHES IN
•
STRENGTHENING FEATURE: FIBER CORD
•
STYLE DESIGNATOR: PLAIN
•
BELT QUANTITY: 2
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL SIZEB
PERFORMANCE TYPESTANDARD CAPACITY
MATERIALFIBER AND RUBBER BODY
NOMINAL PITCH LENGTH51.800 INCHES IN
STRENGTHENING FEATUREFIBER CORD
STYLE DESIGNATORPLAIN
BELT QUANTITY2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
PN52-0-500VACInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
637-919InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
8323InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
639919InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
103KDInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
613376InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B-3972?
B-3972 is a BELTS,V,MATCHED SET.
What parts can replace B-3972?
There are 10 known substitutes for B-3972: PN52-0-500VAC, 637-919, 8323 and 7 more. Substitute compatibility should be verified for your specific system.
Is B-3972 still available?
B-3972 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026