The Elbow,flange to Boss, cataloged under National Stock Number 4730-01-438-2776, 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 Bae Systems Land & Armaments L.p.. Government technical data includes 18 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 | 4730-01-438-2776 |
| Primary Part Number | 12365749 |
| Item Name | Elbow,flange to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Bae Systems Land & Armaments L.p. |
| Status | ACTIVE |
| Flange Shape | RECTANGULAR WITH HOLES FIRST END |
| Flow Angle | 90.0 DEGREES |
| Flange Face Design | PLAIN FIRST END |
| Connection Style | GASKET SEAL (BOSS) SECOND END |
| Nominal Length | 2.810 INCHES FIRST END IN |
| Connection Type | THREADED INTERNAL BOSS SECOND END |
| Connection Type | FLANGE FIRST END |
| Bolt Hole Nominal Diameter | 0.438 INCHES FIRST END IN |
| Leg Length | 0.880 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 0.750 INCHES SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 1.800 INCHES FIRST END IN |
| Bolt Hole Quantity | 4 FIRST END |
| Nominal Width | 2.500 INCHES FIRST END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 2.000 INCHES FIRST END IN |
| Thread Class | 2B SECOND END |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) SECOND END |
| Nominal Thickness | 0.112 INCHES FIRST 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 4730-01-438-2776 is a Elbow,flange to Boss, manufactured by Bae Systems Land & Armaments L.p., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-438-2776 has 2 manufacturer part numbers on file: 12365749 (Amz Alabama Inc.), 12365749 (Bae Systems Land & Armaments L.p.).
Key specifications for 12365749: Flange Shape: RECTANGULAR WITH HOLES FIRST END; Flow Angle: 90.0 DEGREES; Flange Face Design: PLAIN FIRST END; Connection Style: GASKET SEAL (BOSS) SECOND END. 18 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.