The Oil Filler Plug, cataloged under National Stock Number 3431-01-236-4023, is classified within Federal Supply Class 3431 (Electric Arc Welding Equipment) of the Metalworking Machinery (continued) group. The manufacturer of record is Leroi International Inc Dba Compair Leroi. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Oil Filler Plug |
| FSC / FSG | 3431 — Electric Arc Welding Equipment (FSG 34) |
| Manufacturers | Leroi International Inc Dba Compair Leroi (CAGE 1XBP3) |
| Parameter | Value |
|---|---|
| NSN | 3431-01-236-4023 |
| Primary Part Number | 56179 |
| Item Name | Oil Filler Plug |
| FSC / FSG | 3431 / 34 — Electric Arc Welding Equipment |
| Manufacturer | Leroi International Inc Dba Compair Leroi |
| Status | ACTIVE |
| 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 |
|---|---|
| 56179 PRIMARY | Leroi International Inc Dba Compair Leroi (USA) |
| Reference | Meaning |
|---|---|
| 56179 | 5/9 Secondary reference Compair Kellogg Div of Robertshaw Controls Co |
NSN 3431-01-236-4023 is a Oil Filler Plug, manufactured by Leroi International Inc Dba Compair Leroi, classified under FSC 3431, Electric Arc Welding Equipment. Status: active.
NSN 3431-01-236-4023 has 1 manufacturer part number on file: 56179 (Leroi International Inc Dba Compair Leroi).
2 possible matches (shared part number, not a government interchangeability claim): 6520-01-500-7581, 1005-01-646-5973. Verify interchangeability with system specifications before substitution.
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.