PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

101221Coupling,half Flanged

U M C Electronics Co · NSN 4140-00-255-2089 · FSC 4140 · No Item Name Available
Verified by PartsTable
NSN 4140-00-255-2089 — this item is cataloged by the U.S. Government under National Stock Number 4140-00-255-2089. Primary manufacturer part number: 101221.
Features
  • Coupling,half Flanged — FSC 4140
  • General Characteristics Item Description: STEEL,12 INCH DIA IN
  • 1 verified cross-reference
  • Primary manufacturer: U M C Electronics Co
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coupling,half Flanged, cataloged under National Stock Number 4140-00-255-2089, is classified within Federal Supply Class 4140 (No Item Name Available) of the Refrigeration, AC, and Air Circulating Equipment group. The primary manufacturer of record is U M C Electronics Co. Government technical data includes 1 verified specification, 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4140-00-255-2089
Primary Part Number101221
Item NameCoupling,half Flanged
FSC / FSG4140 / 41 — No Item Name Available
ManufacturerU M C Electronics Co
StatusACTIVE
General Characteristics Item DescriptionSTEEL,12 INCH DIA IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4720-00-629-5083101221 INTERCHANGEABLE
Hose Assembly,nonmetallic
Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling
5990-00-779-417510122-1 INTERCHANGEABLE
Synchro,control Transformer
Symetrics Industries, Llc Dba Extant Aerospace Div Symetrics Industries Dba Extant Aerospace
5950-00-834-9529 INTERCHANGEABLE
Coil,radio Frequency
4330-01-130-5391 INTERCHANGEABLE
Filtering Disk,fluid
2520-01-244-4949 INTERCHANGEABLE
Spider,universal Joint,vehicular
6110-01-565-8940000-101221 INTERCHANGEABLE
Interlock Assembly
Dramco, Inc.
Cross-Reference Index
Part NumberManufacturer
101221 U M C Electronics Co (USA)
Related Parts
4720-00-629-5083INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
101221
5990-00-779-4175INTERCHANGEABLE
SYNCHRO,CONTROL TRANSFORMER
10122-1
5950-00-834-9529INTERCHANGEABLE
COIL,RADIO FREQUENCY
4330-01-130-5391INTERCHANGEABLE
FILTERING DISK,FLUID
2520-01-244-4949INTERCHANGEABLE
SPIDER,UNIVERSAL JOINT,VEHICULAR
6110-01-565-8940INTERCHANGEABLE
INTERLOCK ASSEMBLY
000-101221

Frequently Asked Questions

What is NSN 4140-00-255-2089?

NSN 4140-00-255-2089 is a Coupling,half Flanged, manufactured by U M C Electronics Co, classified under FSC 4140 (No Item Name Available). Status: active.

What are the part numbers for NSN 4140-00-255-2089?

NSN 4140-00-255-2089 has 1 cross-referenced part number: 101221 (U M C Electronics Co).

What NSN replaces 4140-00-255-2089?

There are 6 known substitutes for 4140-00-255-2089: 4720-00-629-5083, 5990-00-779-4175, 5950-00-834-9529 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 101221?

Key specifications for 101221: General Characteristics Item Description: STEEL,12 INCH DIA IN. 1 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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