PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

K581Belt,round

Belco Industries, Inc. Dba Belco Industries Inc Div Famco Machine Division · NSN 3030-00-273-1350 · FSC 3030 · No Item Name Available
Verified by PartsTable
NSN 3030-00-273-1350 — this item is cataloged by the U.S. Government under National Stock Number 3030-00-273-1350. Primary manufacturer part number: K581.
Features
  • Belt,round — FSC 3030
  • Performance Type: REGULAR COMMERCIAL DUTY
  • Material: FLAX BODY
  • Style Designator: ROUND TWIST
  • Nominal Diameter: 0.188 INCHES IN
  • Surface Condition: CLEATED OVERALL
  • Nominal Inside Circumference: 52.000 INCHES IN
  • 4 verified cross-references
Applications
  • Applications requiring Flax Body construction
General Description

The Belt,round, cataloged under National Stock Number 3030-00-273-1350, is classified within Federal Supply Class 3030 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Belco Industries, Inc. Dba Belco Industries Inc Div Famco Machine Division. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3030-00-273-1350
Primary Part NumberK581
Item NameBelt,round
FSC / FSG3030 / 30 — No Item Name Available
ManufacturerBelco Industries, Inc. Dba Belco Industries Inc Div Famco Machine Division
StatusACTIVE
Performance TypeREGULAR COMMERCIAL DUTY
MaterialFLAX BODY
Style DesignatorROUND TWIST
Nominal Diameter0.188 INCHES IN
Surface ConditionCLEATED OVERALL
Nominal Inside Circumference52.000 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3110-00-155-7320174909 INTERCHANGEABLE
Bearing,roller,cylindrical
Skf Usa Inc.
2910-00-363-6588C182-218 INTERCHANGEABLE
Parts Kit,carburetor
Zenith Fuel Systems Llc
Cross-Reference Index
Part NumberManufacturer
K581 PRIMARY Belco Industries, Inc. Dba Belco Industries Inc Div Famco Machine Division (USA)
K591 Belco Industries Inc Famco Machine Div (USA)
K581 Belco Industries Inc Famco Machine Div (USA)
K591 PRIMARY Belco Industries, Inc. Dba Belco Industries Inc Div Famco Machine Division (USA)
Related Parts
3110-00-155-7320INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
174909
2910-00-363-6588INTERCHANGEABLE
PARTS KIT,CARBURETOR
C182-218

Frequently Asked Questions

What is NSN 3030-00-273-1350?

NSN 3030-00-273-1350 is a Belt,round, manufactured by Belco Industries, Inc. Dba Belco Industries Inc Div Famco Machine Division, classified under FSC 3030 (No Item Name Available). Status: active.

What are the part numbers for NSN 3030-00-273-1350?

NSN 3030-00-273-1350 has 4 cross-referenced part numbers: K581 (Belco Industries, Inc. Dba Belco Industries Inc Div Famco Machine Division), K591 (Belco Industries Inc Famco Machine Div), K581 (Belco Industries Inc Famco Machine Div), K591 (Belco Industries, Inc. Dba Belco Industries Inc Div Famco Machine Division).

What NSN replaces 3030-00-273-1350?

There are 2 known substitutes for 3030-00-273-1350: 3110-00-155-7320, 2910-00-363-6588. Verify interchangeability with system specifications before substitution.

What are the specifications of K581?

Key specifications for K581: Performance Type: REGULAR COMMERCIAL DUTY; Material: FLAX BODY; Style Designator: ROUND TWIST; Nominal Diameter: 0.188 INCHES IN. 6 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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