PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10621Belt,flat

Consolidated Sewing Machine Corp · NSN 3030-00-136-2121 · FSC 3030 · No Item Name Available
Verified by PartsTable
NSN 3030-00-136-2121 — this item is cataloged by the U.S. Government under National Stock Number 3030-00-136-2121. Primary manufacturer part number: 10621.
Features
  • Belt,flat — FSC 3030
  • Style Designator: REGULAR FLAT TYPE
  • Performance Type: HEAVY DUTY
  • Strengthening Feature: STEEL CORD
  • Nominal Width: 0.875 INCHES IN
  • Usage Design: TRANSMITTING POWER
  • Nominal Thickness: 0.125 INCHES IN
  • Surface Condition: SMOOTH OVERALL
Applications
  • Applications requiring Plastic Polyethylene Terephthalate (pet)(polyester) and Rubber Neoprene Body construction
General Description

The Belt,flat, cataloged under National Stock Number 3030-00-136-2121, is classified within Federal Supply Class 3030 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Consolidated Sewing Machine Corp. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3030-00-136-2121
Primary Part Number10621
Item NameBelt,flat
FSC / FSG3030 / 30 — No Item Name Available
ManufacturerConsolidated Sewing Machine Corp
StatusACTIVE
Style DesignatorREGULAR FLAT TYPE
Performance TypeHEAVY DUTY
Strengthening FeatureSTEEL CORD
Nominal Width0.875 INCHES IN
Usage DesignTRANSMITTING POWER
Nominal Thickness0.125 INCHES IN
Surface ConditionSMOOTH OVERALL
MaterialPLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) AND RUBBER NEOPRENE BODY
Nominal Inside Circumference24.250 INCHES IN
Belt Coupling TypeLACE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5325-00-408-4484500175-82 INTERCHANGEABLE
Grommet,nonmetallic
Cardwell Allen D Corp Div of Cardwell Condenser Corp
5950-00-944-4650995552-2 INTERCHANGEABLE
Transformer,radio Frequency
Raytheon Company Div Rmd Strategic
5133-01-447-8200 INTERCHANGEABLE
Drill,twist
5930-01-476-7248 INTERCHANGEABLE
Switch Assembly
6525-01-571-4423453567055341 INTERCHANGEABLE
Fan,exhaust,ct Scanner
Phillips Medical Systems North America Co
5985-01-681-902110621 INTERCHANGEABLE
Case,antenna
Gatr Technologies, Inc.
8465-01-695-840910621 INTERCHANGEABLE
Snowshoes
Mountain Safety Research Inc
Cross-Reference Index
Part NumberManufacturer
10621 PRIMARY Consolidated Sewing Machine Corp (USA)
Related Parts
5325-00-408-4484INTERCHANGEABLE
GROMMET,NONMETALLIC
500175-82
5950-00-944-4650INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
995552-2
5133-01-447-8200INTERCHANGEABLE
DRILL,TWIST
5930-01-476-7248INTERCHANGEABLE
SWITCH ASSEMBLY
6525-01-571-4423INTERCHANGEABLE
FAN,EXHAUST,CT SCANNER
453567055341
5985-01-681-9021INTERCHANGEABLE
CASE,ANTENNA
10621
8465-01-695-8409INTERCHANGEABLE
SNOWSHOES
10621

Frequently Asked Questions

What is NSN 3030-00-136-2121?

NSN 3030-00-136-2121 is a Belt,flat, manufactured by Consolidated Sewing Machine Corp, classified under FSC 3030 (No Item Name Available). Status: active.

What are the part numbers for NSN 3030-00-136-2121?

NSN 3030-00-136-2121 has 1 cross-referenced part number: 10621 (Consolidated Sewing Machine Corp).

What NSN replaces 3030-00-136-2121?

There are 7 known substitutes for 3030-00-136-2121: 5325-00-408-4484, 5950-00-944-4650, 5133-01-447-8200 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10621?

Key specifications for 10621: Style Designator: REGULAR FLAT TYPE; Performance Type: HEAVY DUTY; Strengthening Feature: STEEL CORD; Nominal Width: 0.875 INCHES IN. 10 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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