The Adapter,straight,flange to Boss, cataloged under National Stock Number 4730-00-829-2158, 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 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-829-2158 |
| Item Name | Adapter,straight,flange to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange Face Design | PLAIN FIRST END |
| Nominal Length | 2.174 INCHES FIRST END IN |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Connection Type | FLANGE FIRST END |
| Material Document and Classification | QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Size | 0.750 INCHES SECOND END IN |
| Bolt Hole Quantity | 2 FIRST END |
| Nominal Width | 1.120 INCHES FIRST END IN |
| Thread Class | 2A SECOND END A |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Thread Series Designator | UNF SECOND END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 12M2589-7 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-00-829-2158 is a Adapter,straight,flange to Boss, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-829-2158: Flange Face Design: PLAIN FIRST END; Nominal Length: 2.174 INCHES FIRST END IN; Connection Type: THREADED EXTERNAL BOSS SECOND END; Connection Type: FLANGE FIRST END. 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.
NSN 4730-00-829-2158 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.