The Boss,elbow, cataloged under National Stock Number 4730-01-340-1333, 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 Safran Landing Systems Canada Inc.. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-340-1333 |
| Primary Part Number | 820-901-3 |
| Item Name | Boss,elbow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Safran Landing Systems Canada Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | 90.0 DEG FLOW ANGLE; FLANGE 1ST END, THREADED INTERNAL BOSS 2ND END |
| Material | IRON |
| 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 |
|---|---|
| 820-901-3 PRIMARY | Safran Landing Systems Canada Inc. (CAN) |
| 820-901-3 | Indal Technologies Inc (CAN) |
| Reference | Meaning |
|---|---|
| 6544D106 | D/9 Drawing number reference only U.S. Government activity |
| 6544D106 ITEM 12 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-340-1333 is a Boss,elbow, manufactured by Safran Landing Systems Canada Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-340-1333 has 2 manufacturer part numbers on file: 820-901-3 (Safran Landing Systems Canada Inc.), 820-901-3 (Indal Technologies Inc).
4 possible matches (shared part number, not a government interchangeability claim): 4730-01-340-1334, 4730-01-340-1335, 5330-01-342-2584. Verify interchangeability with system specifications before substitution.
Key specifications for 820-901-3: General Characteristics Item Description: 90.0 DEG FLOW ANGLE; FLANGE 1ST END, THREADED INTERNAL BOSS 2ND END; Material: IRON. 2 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.