The Cap,pipe, cataloged under National Stock Number 4730-01-657-0083, 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 Washburn-Garfield Corporation. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-657-0083 |
| Primary Part Number | 1-1/4 ALUMINUM PIPE CAP |
| Item Name | Cap,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Washburn-Garfield Corporation |
| Status | ACTIVE |
| Nominal Pipe Size for Which Designed | 1.250 INCHES IN |
| Nominal Thread Size | 1.250 INCHES INTERNAL IN |
| Material | ALUMINUM OVERALL |
| Thread Series Designator | NPT INTERNAL |
| 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 |
|---|---|
| 1-1/4 ALUMINUM PIPE CAP PRIMARY | Washburn-Garfield Corporation (USA) |
| 0418C03-0312-01 PRIMARY | The Entwistle Company Llc (USA) |
| 44705K378 | Mcmaster-Carr Supply Co (USA) |
| Reference | Meaning |
|---|---|
| 0418C03-0312 | D/9 Drawing number reference only The Entwistle Company Llc |
NSN 4730-01-657-0083 is a Cap,pipe, manufactured by Washburn-Garfield Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-657-0083 has 3 manufacturer part numbers on file: 1-1/4 ALUMINUM PIPE CAP (Washburn-Garfield Corporation), 0418C03-0312-01 (The Entwistle Company Llc), 44705K378 (Mcmaster-Carr Supply Co).
Key specifications for 1-1/4 ALUMINUM PIPE CAP: Nominal Pipe Size for Which Designed: 1.250 INCHES IN; Nominal Thread Size: 1.250 INCHES INTERNAL IN; Part Name Assigned by Controlling Agency: PIPE FITTING, CAP ALUMINUM THREADED; End Item Identification: R18 FLIP ASSEMBLY. 4 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.