The Adapter,shaft Seal, cataloged under National Stock Number 4730-01-538-1971, 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 Reedsport Machine & Fabrication, Llc Dba Reedsport Machine & Fabrication. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-538-1971 |
| Primary Part Number | 47B-MLB-243-10 ITEMS 70 & 71 |
| Item Name | Adapter,shaft Seal |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Reedsport Machine & Fabrication, Llc Dba Reedsport Machine & Fabrication |
| Status | ACTIVE |
| General Characteristics Item Description | ITEM CONSISTS OF A STERN SEAL ADAPTER TUBE AND ADAPTER FLANGE; TUBE - INSIDE DIAMETER 3.36, OUTSIDE DIAMETER 3.75 PLUS OR MINUS 1/16; FLANGE - 3.75 THK PL X 8.0 DIAMETER |
| Material | ALUMINUM ALLOY |
| 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 |
|---|---|
| 47B-MLB-243-10 ITEMS 70 & 71 PRIMARY | Reedsport Machine & Fabrication, Llc Dba Reedsport Machine & Fabrication (USA) |
| Reference | Meaning |
|---|---|
| 47B-MLB-243-10 ITEMS 70 & 71 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-538-1971 is a Adapter,shaft Seal, manufactured by Reedsport Machine & Fabrication, Llc Dba Reedsport Machine & Fabrication, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-538-1971 has 1 manufacturer part number on file: 47B-MLB-243-10 ITEMS 70 & 71 (Reedsport Machine & Fabrication, Llc Dba Reedsport Machine & Fabrication).
Key specifications for 47B-MLB-243-10 ITEMS 70 & 71: General Characteristics Item Description: ITEM CONSISTS OF A STERN SEAL ADAPTER TUBE AND ADAPTER FLANGE; TUBE - INSIDE DIAMETER 3.36, OUTSIDE DIAMETER 3.75 PLUS OR MINUS 1/16; FLANGE - 3.75 THK PL X 8.0 DIAMETER; Material: ALUMINUM ALLOY. 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.