The Connector,weld, cataloged under National Stock Number 4730-01-125-6451, 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 Naval Inventory Control Point Mechanicsburg. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-125-6451 |
| Primary Part Number | DE1052 545-2435805ASTM182S1 |
| Item Name | Connector,weld |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| General Characteristics Item Description | FORGED STEEL,1INX4IN LG |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY GENERAL CHARACTERISTICS ITEM DESCRIPTION,QUALITY CONTROLLED IAW NAVSUP CONTROL INSTRUCTIONS FOR SURF LEVEL 1 ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| DE1052 545-2435805ASTM182S1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| DE1052 545-2435805S1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| DE1052 545-2435805 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 4730-01-125-6451 is a Connector,weld, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-125-6451 has 1 manufacturer part number on file: DE1052 545-2435805ASTM182S1 (Naval Inventory Control Point Mechanicsburg).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-125-6452. Verify interchangeability with system specifications before substitution.
Key specifications for DE1052 545-2435805ASTM182S1: General Characteristics Item Description: FORGED STEEL,1INX4IN LG; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY GENERAL CHARACTERISTICS ITEM DESCRIPTION,QUALITY CONTROLLED IAW NAVSUP CONTROL INSTRUCTIONS FOR SURF LEVEL 1 ITEMS. 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.