The Locknut,tube Fitting, cataloged under National Stock Number 4730-01-481-5398, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Egs Electrical Group Appleton Div. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-481-5398 |
| Primary Part Number | BLSG-50 |
| Item Name | Locknut,tube Fitting |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Egs Electrical Group Appleton Div |
| Status | ACTIVE |
| Material | STEEL BASE |
| Nominal Tube Outside Diameter | 0.500 INCHES IN |
| 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 |
|---|---|
| BLSG-50 | Egs Electrical Group Appleton Div (USA) |
| 863-000642 | Guild Associates Inc (USA) |
| Reference | Meaning |
|---|---|
| BLSG-50 | 3/9 Design control — primary reference Appleton Electric Co |
NSN 4730-01-481-5398 is a Locknut,tube Fitting, manufactured by Egs Electrical Group Appleton Div, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-481-5398 has 2 manufacturer part numbers on file: BLSG-50 (Egs Electrical Group Appleton Div), 863-000642 (Guild Associates Inc).
Key specifications for BLSG-50: Special Features: GASKETED SEALING LOCKNUTS-STEEL/MALLEABLE IRON.; End Item Identification: CONTRACTOR LOGISTIC SUPPORT MODEL M871, 30-FOOT TRAILER, LAUNDRY ADVANCED SYSTEM(LADDS), NSN: 2330-00-122-6779 CONTRACT DAAK60-97-C-9222 TM 9-3510-122-24P.; Material: STEEL BASE; Nominal Tube Outside Diameter: 0.500 INCHES IN. 2 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.