The Expansion Joint,pipe, cataloged under National Stock Number 4730-01-078-3837, 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 General Rubber Llc Dba General Rubber Corp. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-078-3837 |
| Primary Part Number | 1015-0080-OBB |
| Item Name | Expansion Joint,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | General Rubber Llc Dba General Rubber Corp |
| Status | ACTIVE |
| End Connection Type | FLANGED |
| Bolt Hole Diameter | 0.781 INCHES NOMINAL IN |
| Working Pressure Rating | 125.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Bolt Hole Quantity | 8 |
| Bolt Circle Diameter | 11.750 INCHES NOMINAL IN |
| Material | STEEL FLANGE |
| Flange Outside Diameter | 13.500 INCHES NOMINAL 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 |
|---|---|
| 1015-0080-OBB PRIMARY | General Rubber Llc Dba General Rubber Corp (USA) |
| AB2800E8X6 PRIMARY | Vibration Mountings and Controls Inc (USA) |
| 3181082 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| RXJ | 5/9 Secondary reference Vibration Mountings and Controls Inc |
| ASTM F1123 | 5/1 Secondary reference U.S. Government activity |
| ASC1158405 | 5/9 Secondary reference Asc Pty Ltd |
NSN 4730-01-078-3837 is a Expansion Joint,pipe, manufactured by General Rubber Llc Dba General Rubber Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-078-3837 has 3 manufacturer part numbers on file: 1015-0080-OBB (General Rubber Llc Dba General Rubber Corp), AB2800E8X6 (Vibration Mountings and Controls Inc), 3181082 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
5 possible matches (shared part number, not a government interchangeability claim): 4730-01-297-0485, 4730-01-321-7735, 4730-01-321-7738. Verify interchangeability with system specifications before substitution.
Key specifications for 1015-0080-OBB: End Connection Type: FLANGED; Bolt Hole Diameter: 0.781 INCHES NOMINAL IN; Overall Length: 6.000 INCHES NOMINAL IN; Working Pressure Rating: 125.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS. 7 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.