The Flange,pipe, cataloged under National Stock Number 4730-01-309-4953, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-309-4953 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Nominal Pipe Size for Which Designed | 3.000 INCHES IN |
| Material Document and Classification | MIL-C-15726,COMP 70-30S MIL SPEC SINGLE MATERIAL RESPONSE |
| Material | COPPER ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 87865-1311 | D/9 Drawing number reference only U.S. Government activity |
| 4685272 | D/9 Drawing number reference only U.S. Government activity |
| 704-4685272 ITEM F33 | 5/2 Secondary reference U.S. Government activity |
| 2621-228-01 PIECE 218 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-309-4953 is a Flange,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-309-4953: Nominal Pipe Size for Which Designed: 3.000 INCHES IN; Material Document and Classification: MIL-C-15726,COMP 70-30S MIL SPEC SINGLE MATERIAL RESPONSE; End Item Identification: SSBN TRIDENT; Material: COPPER ALLOY. 3 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.