The Flange,pipe,blind, cataloged under National Stock Number 4730-01-113-9265, 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 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-113-9265 |
| Primary Part Number | 211-4455553 ITEM F-138 4IN IPS |
| Item Name | Flange,pipe,blind |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Flange Diameter | 9.000 INCHES NOMINAL IN |
| Face Seating Surface Condition | MACHINED |
| Nominal Pipe Size for Which Designed | 4.000 INCHES IN |
| Flange Section Style | PLAIN FACE |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.750 INCHES NOMINAL IN |
| Material Document and Classification | MIL-C-20159,TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE |
| Bolt Hole Quantity | 8 |
| Bolt Circle Diameter | 7.500 INCHES NOMINAL IN |
| Material | COPPER ALLOY OR STEEL CORROSION RESISTING |
| Thickness | 0.500 INCHES MINIMUM 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 |
|---|---|
| 211-4455553 ITEM F-138 4IN IPS PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 211-4455553 | 3/2 Design control — primary reference U.S. Government activity |
| 6200-342 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 211-4455553 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4730-01-113-9265 is a Flange,pipe,blind, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-113-9265 has 1 manufacturer part number on file: 211-4455553 ITEM F-138 4IN IPS (Naval Sea Systems Command).
Key specifications for 211-4455553 ITEM F-138 4IN IPS: Flange Diameter: 9.000 INCHES NOMINAL IN; Face Seating Surface Condition: MACHINED; Nominal Pipe Size for Which Designed: 4.000 INCHES IN; Flange Section Style: PLAIN FACE. 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.