The Plug,tube Repair, cataloged under National Stock Number 4730-00-142-2691, 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 Babcock & Wilcox Co. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 16 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-142-2691 |
| Primary Part Number | MX251273-1PC2653 |
| Item Name | Plug,tube Repair |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Babcock & Wilcox Co |
| Status | ACTIVE |
| Nominal Overall Length | 3.000 INCHES IN |
| Hole Thread Size | 5/8-12 NC |
| Minor Diameter | 1.188 INCHES NOMINAL IN |
| Material | STEEL |
| Major Diameter | 1.375 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 |
|---|---|
| MX251273-1PC2653 PRIMARY | Babcock & Wilcox Co (USA) |
| BB55S51-0121PC3530 PRIMARY | Naval Sea Systems Command (USA) |
| CL119S5103-391077ALT3PC18 PRIMARY | Naval Sea Systems Command (USA) |
| MX261273-5PC18 PRIMARY | Babcock & Wilcox Co (USA) |
| ML262670-2PC55 PRIMARY | Babcock & Wilcox Co (USA) |
| BB55S51-23PC3530 PRIMARY | Naval Sea Systems Command (USA) |
| MI262967PC65 PRIMARY | Babcock & Wilcox Co (USA) |
| MX251286-1PC2653 PRIMARY | Babcock & Wilcox Co (USA) |
| BB55S51-0122PC3530 PRIMARY | Naval Sea Systems Command (USA) |
| MX251286-2653 PRIMARY | Babcock & Wilcox Co (USA) |
| CL118S5103-391076ALT5PC18 PRIMARY | Naval Sea Systems Command (USA) |
| MX261274X3PC18 PRIMARY | Babcock & Wilcox Co (USA) |
| MX229281-5-1 1-2 PRIMARY | Babcock & Wilcox Co (USA) |
| ML262664-2PC47 PRIMARY | Babcock & Wilcox Co (USA) |
| BB55S51-22PC3530 PRIMARY | Naval Sea Systems Command (USA) |
| MS211447PCP1 PRIMARY | Babcock & Wilcox Co (USA) |
| Reference | Meaning |
|---|---|
| BB55S51-22PC3530 | 5/9 Secondary reference U.S. Government activity |
| CL119S5103-391076ALT5PC18 | 5/9 Secondary reference U.S. Government activity |
| CL119S5103-391077ALT3PC18 | 5/9 Secondary reference U.S. Government activity |
| BB55S51-23PC3530 | 5/9 Secondary reference U.S. Government activity |
| BB55S51-0122PC3530 | 5/9 Secondary reference U.S. Government activity |
| BB55S51-0121PC3530 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-00-142-2691 is a Plug,tube Repair, manufactured by Babcock & Wilcox Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-142-2691 has 16 manufacturer part numbers on file: MX251273-1PC2653 (Babcock & Wilcox Co), BB55S51-0121PC3530 (Naval Sea Systems Command), CL119S5103-391077ALT3PC18 (Naval Sea Systems Command), MX261273-5PC18 (Babcock & Wilcox Co), ML262670-2PC55 (Babcock & Wilcox Co) and 11 more.
Key specifications for MX251273-1PC2653: Nominal Overall Length: 3.000 INCHES IN; Hole Thread Size: 5/8-12 NC; Minor Diameter: 1.188 INCHES NOMINAL IN; Material: STEEL. 5 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.