The Nipple,pipe, cataloged under National Stock Number 4730-01-648-5618, 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 The Entwistle Company Llc. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-648-5618 |
| Primary Part Number | 0418C03-0375-01 |
| Item Name | Nipple,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | The Entwistle Company Llc |
| Status | ACTIVE |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Nominal Overall Length | 3.0 INCHES IN |
| Connection Type | THREADED EXTERNAL PIPE ALL ENDS |
| Style Designator | LONG |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.250 INCHES ALL ENDS IN |
| Pipe Wall Thickness Designation for Which Designed | SCHEDULE 40 ALL ENDS |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Thread Quantity Per Inch | 18 ALL ENDS |
| Material | STEEL COMP 316 OVERALL |
| Thread Series Designator | NPT ALL ENDS |
| 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 |
|---|---|
| 0418C03-0375-01 PRIMARY | The Entwistle Company Llc (USA) |
| 4548K135 | Mcmaster-Carr Supply Company (USA) |
| 0418C03-0375-01 | Washburn-Garfield Corporation (USA) |
| Reference | Meaning |
|---|---|
| 4548K135 | 5/9 Secondary reference Merit Brass Co |
| 4548K135 | 5/9 Secondary reference Mcmaster-Carr Supply Co |
| 0418C03-0375 | D/9 Drawing number reference only The Entwistle Company Llc |
NSN 4730-01-648-5618 is a Nipple,pipe, manufactured by The Entwistle Company Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-648-5618 has 3 manufacturer part numbers on file: 0418C03-0375-01 (The Entwistle Company Llc), 4548K135 (Mcmaster-Carr Supply Company), 0418C03-0375-01 (Washburn-Garfield Corporation).
Key specifications for 0418C03-0375-01: Connection Style: PLAIN (PIPE) ALL ENDS; Nominal Overall Length: 3.0 INCHES IN; Connection Type: THREADED EXTERNAL PIPE ALL ENDS; Style Designator: LONG. 11 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.