The Plug,tube Repair, cataloged under National Stock Number 4730-00-142-2693, 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 Naval Sea Systems Command. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 18 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-142-2693 |
| Primary Part Number | BB61S51-18ALT11PC15 |
| Item Name | Plug,tube Repair |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Nominal Overall Length | 3.000 INCHES IN |
| Nominal Outside Diameter Tube Accommodated | 0.438 INCHES IN |
| Hole Thread Size | 5/8-12 UN-2B |
| Minor Diameter | 2.687 INCHES NOMINAL IN |
| Material | STEEL |
| Major Diameter | 2.875 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 |
|---|---|
| BB61S51-18ALT11PC15 PRIMARY | Naval Sea Systems Command (USA) |
| ML242982PC3 1-4 PRIMARY | Babcock & Wilcox Co (USA) |
| MX261274-3PC19 PRIMARY | Babcock & Wilcox Co (USA) |
| MX253089-3PC3 1-4 PRIMARY | Babcock & Wilcox Co (USA) |
| CL119S5103-391079PC1-4 PRIMARY | Naval Sea Systems Command (USA) |
| DD445S5103-72PC31-4 PRIMARY | Naval Sea Systems Command (USA) |
| CL55S51-87PC31-4 PRIMARY | Naval Sea Systems Command (USA) |
| NY420-969-2PC3 1-4 | Amec Foster Wheeler North America Corp. Dba Foster Wheeler (USA) |
| MX262886ALT6PC2408 PRIMARY | Babcock & Wilcox Co (USA) |
| BB61S51-19ALT10P6ALT5PC19 PRIMARY | Naval Sea Systems Command (USA) |
| MX243195PC3 1-4 PRIMARY | Babcock & Wilcox Co (USA) |
| DD445S5103-71ALT9PC31-4 PRIMARY | Naval Sea Systems Command (USA) |
| DD692S5101-26PC31-4 PRIMARY | Naval Sea Systems Command (USA) |
| MX243194-9PC3 1-4 PRIMARY | Babcock & Wilcox Co (USA) |
| MX262887-3PC2408 PRIMARY | Babcock & Wilcox Co (USA) |
| DVL48S5101-479159PC3 1-4IN PRIMARY | Naval Sea Systems Command (USA) |
| MX261273-5PC19 PRIMARY | Babcock & Wilcox Co (USA) |
| MX262887-2408 PRIMARY | Babcock & Wilcox Co (USA) |
| Reference | Meaning |
|---|---|
| DD692S5101-26PC31-4 | 5/9 Secondary reference U.S. Government activity |
| CL55S51-87PC31-4 | 5/9 Secondary reference U.S. Government activity |
| CVL48S5101-479159PC3 1-4IN | 5/9 Secondary reference U.S. Government activity |
| CL119S5103-391079PC1-4 | 5/9 Secondary reference U.S. Government activity |
| DD445S5103-72PC31-4 | 5/9 Secondary reference U.S. Government activity |
| BB61S51-18ALT11PC15 | 5/9 Secondary reference U.S. Government activity |
| BB61S51-19ALT10P6ALT5PC19 | 5/9 Secondary reference U.S. Government activity |
| DD445S5103-71ALT9PC31-4 | 5/9 Secondary reference U.S. Government activity |
| 1020-908-R3 | 5/9 Secondary reference Mindeco Corp |
NSN 4730-00-142-2693 is a Plug,tube Repair, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-142-2693 has 18 manufacturer part numbers on file: BB61S51-18ALT11PC15 (Naval Sea Systems Command), ML242982PC3 1-4 (Babcock & Wilcox Co), MX261274-3PC19 (Babcock & Wilcox Co), MX253089-3PC3 1-4 (Babcock & Wilcox Co), CL119S5103-391079PC1-4 (Naval Sea Systems Command) and 13 more.
Key specifications for BB61S51-18ALT11PC15: Nominal Overall Length: 3.000 INCHES IN; Nominal Outside Diameter Tube Accommodated: 0.438 INCHES IN; Hole Thread Size: 5/8-12 UN-2B; Minor Diameter: 2.687 INCHES NOMINAL IN. 6 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.