The Terminal,stud, cataloged under National Stock Number 5940-00-231-4911, is classified within Federal Supply Class 5940 (Lugs, Terminals, and Terminal Strips) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Astro Seal, Inc. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5940-00-231-4911 |
| Primary Part Number | AS30678 |
| Item Name | Terminal,stud |
| FSC / FSG | 5940 / 59 — Lugs, Terminals, and Terminal Strips |
| Manufacturer | Astro Seal, Inc |
| Status | ACTIVE |
| Minor Bushing Length | 0.045 INCHES IN |
| Minor Bushing Diameter | 0.058 INCHES IN |
| Precious Material | GOLD |
| Overall Diameter | 0.060 INCHES IN |
| Largest Diameter | 0.020 INCHES SINGLE END IN |
| Major Bushing Length | 0.030 INCHES IN |
| Precious Material and Weight | 0.040 GOLD GRAINS, TROY |
| Basic Shape Style | NONTUBULAR, ROUND |
| Mounting Method Style | PRESS FIT |
| Electrical Insulation Feature | HERMETIC SEAL |
| Terminal Length | 0.050 INCHES IN |
| Dry Flashover Voltage Rating in Volts | 350.0 |
| Conductor Accommodation Type | PIN SINGLE END |
| Surface Treatment | NICKEL OVERALL EXCEPT INSULATION FIRST LAYER |
| Surface Treatment | GOLD OR TIN OVERALL EXCEPT INSULATION SECOND LAYER |
| Precious Material and Location | EXTERNAL SURFACES OF PIN AND SHELL GOLD |
| Major Bushing Diameter | 0.061 INCHES IN |
| Material | COPPER ALLOY OVERALL EXCEPT INSULATION |
| Material | GLASS INSULATION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| AS30678 PRIMARY | Astro Seal, Inc (USA) |
| Reference | Meaning |
|---|---|
| 17121-S020 | 5/9 Secondary reference Networks Electronic Company, Llc |
| 289J | 5/9 Secondary reference Leigh Instruments Ltd Frequency Control Div C R Snelgrove Co C R Snelgrove Co |
| 952242-1 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
NSN 5940-00-231-4911 is a Terminal,stud, manufactured by Astro Seal, Inc, classified under FSC 5940, Lugs, Terminals, and Terminal Strips. Status: active.
NSN 5940-00-231-4911 has 1 manufacturer part number on file: AS30678 (Astro Seal, Inc).
2 possible matches (shared part number, not a government interchangeability claim): 4130-01-066-5943, 5962-01-170-3511. Verify interchangeability with system specifications before substitution.
Key specifications for AS30678: Minor Bushing Length: 0.045 INCHES IN; Minor Bushing Diameter: 0.058 INCHES IN; Precious Material: GOLD; Overall Diameter: 0.060 INCHES IN. 19 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.