The Cap,tube, cataloged under National Stock Number 4730-01-372-7338, 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 Huntington Ingalls Inc Div Newport News Shipbuilding. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-372-7338 |
| Primary Part Number | 4637512 PC16 |
| Item Name | Cap,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| Tube Outside Diameter for Which Designed | 2.500 INCHES NOMINAL IN |
| Material Document and Classification | MIL-C-15725 SOFT TEMPER MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND EXTERNAL |
| Nominal Thread Size | 2.000 INCHES EXTERNAL IN |
| Thread Class | 3A INTERNAL A |
| Thread Quantity Per Inch | 8 EXTERNAL |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | UN EXTERNAL |
| 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 |
|---|---|
| 4637512 PC16 PRIMARY | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 4637512 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
| 97-37-317 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 412-4637512 PC16 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 4730-01-372-7338 is a Cap,tube, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-372-7338 has 1 manufacturer part number on file: 4637512 PC16 (Huntington Ingalls Inc Div Newport News Shipbuilding).
Key specifications for 4637512 PC16: Tube Outside Diameter for Which Designed: 2.500 INCHES NOMINAL IN; Material Document and Classification: MIL-C-15725 SOFT TEMPER MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Thread Direction: RIGHT-HAND EXTERNAL; Nominal Thread Size: 2.000 INCHES EXTERNAL IN. 8 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.