The Elbow,pipe to Boss, cataloged under National Stock Number 4730-01-155-4104, 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 Kalmar AC Inc. The record lists 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Elbow,pipe to Boss |
| FSC / FSG | 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47) |
| Manufacturers | Kalmar AC Inc (CAGE 0AHU0); Caterpillar Inc Div Caterpillar Defense (CAGE 11083) |
| Parameter | Value |
|---|---|
| NSN | 4730-01-155-4104 |
| Primary Part Number | 4750371 |
| Item Name | Elbow,pipe to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Kalmar AC Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 4750371 | Kalmar AC Inc (USA) |
| 5P7981 | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 600-4-4C | 3/9 Design control — primary reference Contitech Usa, Inc. |
| 4887249 | D/9 Drawing number reference only Kalmar AC Inc |
| 600-4-4C | 5/9 Secondary reference Anchor Swan Corp Sub of Amerace Corp |
NSN 4730-01-155-4104 is a Elbow,pipe to Boss, manufactured by Kalmar AC Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-155-4104 has 2 manufacturer part numbers on file: 4750371 (Kalmar AC Inc), 5P7981 (Caterpillar Inc Div Caterpillar Defense).
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.