The Elbow,tube, cataloged under National Stock Number 4730-00-982-2481, 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 The Boeing Company Div Defense. Government technical data includes 12 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-982-2481 |
| Primary Part Number | ST7M457N4 |
| Item Name | Elbow,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Furnished Items and Quantity | 2 TUBE COUPLING NUT W/SLEEVE |
| Flow Angle | 90.0 DEGREES |
| Connection Style | FLARELESS (TUBE) ALL ENDS |
| Criticality Code Justification | FEAT |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES ALL ENDS IN |
| Leg Length | 0.719 INCHES NOMINAL ALL ENDS IN |
| Nominal Thread Size | 0.438 INCHES ALL ENDS IN |
| Seat Angle | 20.0 DEGREES ALL ENDS |
| Thread Class | 2A ALL ENDS A |
| Material | PLASTIC POLYAMIDE NYLON OVERALL |
| Thread Series Designator | UNF ALL ENDS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| ST7M457N4 | The Boeing Company Div Defense (USA) |
| GE510A4 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 4-4EBZ-NY | 5/9 Secondary reference Parker-Hannifin Corporation Div Instrumentation Products Division |
| 10108456 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 50-4N0 | 5/9 Secondary reference J R Douglass Company |
| ST7M457 | D/9 Drawing number reference only The Boeing Company Div Defense |
| ZY400-9 | 5/9 Secondary reference Swagelok Co Dba Use CAGE Code 3t9t9 for Cataloging |
| GE510A | 7/1 Vendor item drawing reference Northrop Grumman Systems Corporation |
| NY-400-9 | 3/9 Design control — primary reference Swagelok Co Dba Use CAGE Code 3t9t9 for Cataloging |
NSN 4730-00-982-2481 is a Elbow,tube, manufactured by The Boeing Company Div Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-982-2481 has 2 manufacturer part numbers on file: ST7M457N4 (The Boeing Company Div Defense), GE510A4 (Northrop Grumman Systems Corporation).
1 possible match (shared part number, not a government interchangeability claim): 4730-00-982-2482. Verify interchangeability with system specifications before substitution.
Key specifications for ST7M457N4: Furnished Items and Quantity: 2 TUBE COUPLING NUT W/SLEEVE; Flow Angle: 90.0 DEGREES; Connection Style: FLARELESS (TUBE) ALL ENDS; Criticality Code Justification: FEAT. 12 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.