PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31257Terminal,lug

Te Connectivity Corporation · NSN 5940-00-156-7128 · FSC 5940 · No Item Name Available
Verified by PartsTable
NSN 5940-00-156-7128 — this item is cataloged by the U.S. Government under National Stock Number 5940-00-156-7128. Primary manufacturer part number: 31257.
Features
  • Terminal,lug — FSC 5940
  • Mounting Hole Diameter: 0.328 INCHES IN
  • Electrical Insulation Feature: UNINSULATED
  • Mounting Method Style: RING
  • Mounting Facility Thickness: 0.033 INCHES IN
  • Material: COPPER OVERALL
  • Surface Treatment Document and Classification: MIL-T-10727 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL SINGLE LAYER
  • Surface Treatment: TIN OVERALL SINGLE LAYER
Applications
  • Applications requiring Copper Overall construction
General Description

The Terminal,lug, cataloged under National Stock Number 5940-00-156-7128, 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 Te Connectivity Corporation. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5940-00-156-7128
Primary Part Number31257
Item NameTerminal,lug
FSC / FSG5940 / 59 — No Item Name Available
ManufacturerTe Connectivity Corporation
StatusCANCELLED
Mounting Hole Diameter0.328 INCHES IN
Electrical Insulation FeatureUNINSULATED
Mounting Method StyleRING
Mounting Facility Thickness0.033 INCHES IN
MaterialCOPPER OVERALL
Surface Treatment Document and ClassificationMIL-T-10727 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL SINGLE LAYER
Surface TreatmentTIN OVERALL SINGLE LAYER
Basic Shape StyleCRIMP
Material Document and ClassificationQQ-C-576 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Mounting Tongue Width0.469 INCHES IN
Conductor Accommodation TypeRECESSED BARREL SINGLE END
Material Thickness0.033 INCHES IN
Maximum Conductor Size Accommodated14 AWG
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
5950-00-257-313331257 INTERCHANGEABLE
Coil,radio Frequency
Pax Mfg Corp Hammarlund Mfg Co Div
5310-00-400-5503MS35650-3254 INTERCHANGEABLE
Nut,plain,hexagon
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5910-00-519-9134312-0057 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Cummins Power Generation Inc.
4820-00-542-2370179162 INTERCHANGEABLE
Cock,drain
Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp
5136-01-046-885723312 INTERCHANGEABLE
Die,thread Cutting
Greenfield Industries Inc
5962-01-175-438941338 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Div Rmd Strategic
5930-01-290-8818 INTERCHANGEABLE
Switch,lock
4820-01-449-459941338 INTERCHANGEABLE
Valve,globe
Tyco Fire Products Lp
4730-01-529-221941338 INTERCHANGEABLE
Coupling Half,quick Disconnect
Ritchie Engineering Co Inc
7520-01-598-9095BG212BLU INTERCHANGEABLE
Pen,ball-Point
Pilot Corporation of America
Cross-Reference Index
Part NumberManufacturer
41338 Vaco Products Co (USA)
10015366-052 Us Army Aviation and Missile Command (USA)
31257 PRIMARY Te Connectivity Corporation (USA)
Related Parts
5950-00-257-3133INTERCHANGEABLE
COIL,RADIO FREQUENCY
31257
5310-00-400-5503INTERCHANGEABLE
NUT,PLAIN,HEXAGON
MS35650-3254
5910-00-519-9134INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
312-0057
4820-00-542-2370INTERCHANGEABLE
COCK,DRAIN
179162
5136-01-046-8857INTERCHANGEABLE
DIE,THREAD CUTTING
23312
5962-01-175-4389INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
41338
5930-01-290-8818INTERCHANGEABLE
SWITCH,LOCK
4820-01-449-4599INTERCHANGEABLE
VALVE,GLOBE
41338
4730-01-529-2219INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
41338
7520-01-598-9095INTERCHANGEABLE
PEN,BALL-POINT
BG212BLU

Frequently Asked Questions

What is NSN 5940-00-156-7128?

NSN 5940-00-156-7128 is a Terminal,lug, manufactured by Te Connectivity Corporation, classified under FSC 5940 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5940-00-156-7128?

NSN 5940-00-156-7128 has 3 cross-referenced part numbers: 41338 (Vaco Products Co), 10015366-052 (Us Army Aviation and Missile Command), 31257 (Te Connectivity Corporation).

What NSN replaces 5940-00-156-7128?

There are 10 known substitutes for 5940-00-156-7128: 5950-00-257-3133, 5310-00-400-5503, 5910-00-519-9134 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31257?

Key specifications for 31257: Mounting Hole Diameter: 0.328 INCHES IN; Electrical Insulation Feature: UNINSULATED; Mounting Method Style: RING; Mounting Facility Thickness: 0.033 INCHES IN. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5940-00-156-7128 still in active supply?

NSN 5940-00-156-7128 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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