The Adapter,straight,flange to Tube, cataloged under National Stock Number 4730-01-269-9544, 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 22 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-269-9544 |
| Primary Part Number | 5906266 |
| Item Name | Adapter,straight,flange to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES SECOND END |
| Flange Face Design | RAISED STRAIGHT SECOND END |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE2,CLASS1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE2,CLASS1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALLUNABLE TO DECODE |
| Connection Style | PLAIN (TUBE) FIRST END |
| Bolt Circle Nominal Diameter | 0.920 INCHES SECOND END IN |
| Nominal Overall Length | 3.125 INCHES IN |
| Connection Type | FLANGE SECOND END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Material Document and Classification | QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Bolt Hole Nominal Diameter | 0.134 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES FIRST END IN |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Nominal Outside Diameter | 1.375 INCHES SECOND END IN |
| Bolt Hole Quantity | 4 SECOND END |
| Surface Treatment | ANODIZE OVERALL |
| Thread Class | 2A FIRST END A |
| Material | ALUMINUM ALLOY 6061 OVERALL |
| Thread Series Designator | UNEF FIRST END |
| Raised Face Nominal Diameter | 0.562 INCHES SECOND END IN |
| Raised Face Nominal Height | 0.060 INCHES SECOND END IN |
| Nominal Thickness | 0.188 INCHES SECOND END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4730-01-269-9544 is a Adapter,straight,flange to Tube, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-269-9544 has 2 manufacturer part numbers on file: 5906266 (Naval Sea Systems Command), 5906266 (O T S I).
Key specifications for 5906266: Flange Shape: ROUND WITH HOLES SECOND END; Flange Face Design: RAISED STRAIGHT SECOND END; Surface Treatment Document and Classification: MIL-A-8625,TYPE2,CLASS1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Surface Treatment Document and Classification: MIL-A-8625,TYPE2,CLASS1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALLUNABLE TO DECODE. 22 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.