PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ST4M220-4Contact Strip,radio Frequency Gr

Tech-Etch, Inc. Dba Tech-Etch Inc · NSN 5940-01-123-3241 · FSC 5940 · No Item Name Available
Verified by PartsTable
NSN 5940-01-123-3241 — this item is cataloged by the U.S. Government under National Stock Number 5940-01-123-3241. Primary manufacturer part number: ST4M220-4.
Features
  • Contact Strip,radio Frequency Gr — FSC 5940
  • Surface Treatment: TIN
  • Surface Treatment Document and Classification: MIL-T-10727, TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE
  • Material: COPPER ALLOY
  • Unit Type: ANGLE
  • Mounting Configuration: ONE 0.265 IN. DIA CENTER HOLE IN
  • Mounting Method: HOLE
  • Overall Thickness: 0.012 INCHES NOMINAL IN
Applications
  • Applications requiring Copper Alloy construction
General Description

The Contact Strip,radio Frequency Gr, cataloged under National Stock Number 5940-01-123-3241, is classified within Federal Supply Class 5940 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Tech-Etch, Inc. Dba Tech-Etch Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5940-01-123-3241
Primary Part NumberST4M220-4
Item NameContact Strip,radio Frequency Gr
FSC / FSG5940 / 59 — No Item Name Available
ManufacturerTech-Etch, Inc. Dba Tech-Etch Inc
StatusACTIVE
Surface TreatmentTIN
Surface Treatment Document and ClassificationMIL-T-10727, TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE
MaterialCOPPER ALLOY
Unit TypeANGLE
Mounting ConfigurationONE 0.265 IN. DIA CENTER HOLE IN
Mounting MethodHOLE
Overall Thickness0.012 INCHES NOMINAL IN
Contact Finger Quantity3
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6685-01-070-2586 INTERCHANGEABLE
Pyrometer,indicating
5310-01-160-7415869-07567 INTERCHANGEABLE
Nut
Aqua-Chem, Inc. Dba Aqua-Chem Inc
5120-01-399-9885724 INTERCHANGEABLE
Wrench,adjustable
The Stanley Works Dba Stanley Proto
Cross-Reference Index
Part NumberManufacturer
10132327 Nimikkeistokeskus Ncb Finland (FIN)
ST4M220-4 The Boeing Company Div Defense (USA)
3869-32-X Laird Technologies, Inc Dba Laird Technologies (USA)
ST4M220-4 PRIMARY Tech-Etch, Inc. Dba Tech-Etch Inc (USA)
SK-11-9-77TR Laird Technologies, Inc Dba Laird Technologies (USA)
PC92038-1 Rockwell Collins, Inc. Dba Rc Displays Systems (USA)
869-32 Laird Technologies, Inc Dba Laird Technologies (USA)
Related Parts
6685-01-070-2586INTERCHANGEABLE
PYROMETER,INDICATING
5310-01-160-7415INTERCHANGEABLE
NUT
869-07567
5120-01-399-9885INTERCHANGEABLE
WRENCH,ADJUSTABLE
724

Frequently Asked Questions

What is NSN 5940-01-123-3241?

NSN 5940-01-123-3241 is a Contact Strip,radio Frequency Gr, manufactured by Tech-Etch, Inc. Dba Tech-Etch Inc, classified under FSC 5940 (No Item Name Available). Status: active.

What are the part numbers for NSN 5940-01-123-3241?

NSN 5940-01-123-3241 has 7 cross-referenced part numbers: 10132327 (Nimikkeistokeskus Ncb Finland), ST4M220-4 (The Boeing Company Div Defense), 3869-32-X (Laird Technologies, Inc Dba Laird Technologies), ST4M220-4 (Tech-Etch, Inc. Dba Tech-Etch Inc), SK-11-9-77TR (Laird Technologies, Inc Dba Laird Technologies) and 2 more.

What NSN replaces 5940-01-123-3241?

There are 3 known substitutes for 5940-01-123-3241: 6685-01-070-2586, 5310-01-160-7415, 5120-01-399-9885. Verify interchangeability with system specifications before substitution.

What are the specifications of ST4M220-4?

Key specifications for ST4M220-4: Overall Length: 1.500 INCHES NOMINAL IN; Surface Treatment: TIN; Surface Treatment Document and Classification: MIL-T-10727, TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE; Material: COPPER ALLOY. 11 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com