The Locknut,electrical Conduit, cataloged under National Stock Number 5975-00-518-3157, is classified within Federal Supply Class 5975 (Electrical Hardware and Supplies) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Egs Electrical Group Appleton Div. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5975-00-518-3157 |
| Primary Part Number | BL350 |
| Item Name | Locknut,electrical Conduit |
| FSC / FSG | 5975 / 59 — Electrical Hardware and Supplies |
| Manufacturer | Egs Electrical Group Appleton Div |
| Status | ACTIVE |
| Width Across Flats | 4.500 INCHES NOMINAL IN |
| Conduit Size Accommodated | 3.500 INCHES NOMINAL IN |
| Drive Type | KEYWAY |
| Overall Thickness | 0.313 INCHES NOMINAL IN |
| Thread Type | STRAIGHT |
| Thread Size | 3-1/2-8 |
| Surface Treatment | ZINC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| BL350 PRIMARY | Egs Electrical Group Appleton Div (USA) |
| 149 PRIMARY | Abb Installation Products Inc (USA) |
| LN-109 | Abb Installation Products Inc (USA) |
| 1014 | Raco, a Division of Hubbell Incorporated(delaware) (USA) |
| Reference | Meaning |
|---|---|
| 19 | 5/9 Secondary reference U.S. Government activity |
| LN-109 | 5/9 Secondary reference Thomas and Betts Corp American Electric Div Oem Group Memphis Tn |
| LN12 | 5/2 Secondary reference U.S. Government activity |
| 149 | 5/9 Secondary reference Thomas and Betts Corp |
| 159 | 5/9 Secondary reference Efcor Inc |
| 309 | 5/9 Secondary reference Thomas and Betts Corp American Electric Div Oem Group Memphis Tn |
| 1-350 | 5/9 Secondary reference U.S. Government activity |
NSN 5975-00-518-3157 is a Locknut,electrical Conduit, manufactured by Egs Electrical Group Appleton Div, classified under FSC 5975, Electrical Hardware and Supplies. Status: active.
NSN 5975-00-518-3157 has 4 manufacturer part numbers on file: BL350 (Egs Electrical Group Appleton Div), 149 (Abb Installation Products Inc), LN-109 (Abb Installation Products Inc), 1014 (Raco, a Division of Hubbell Incorporated(delaware)).
Key specifications for BL350: Width Across Flats: 4.500 INCHES NOMINAL IN; Conduit Size Accommodated: 3.500 INCHES NOMINAL IN; Drive Type: KEYWAY; Overall Thickness: 0.313 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.