The Elbow,tube to Boss, cataloged under National Stock Number 4730-01-280-8351, 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 U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 15 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-280-8351 |
| Primary Part Number | 12600849 |
| Item Name | Elbow,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 PREFORMED PACKING |
| Flow Angle | 90.0 DEGREES |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Connection Style | GASKET SEAL (TUBE) FIRST END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Operating Pressure | 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 0.850 INCHES NOMINAL FIRST END IN |
| Leg Length | 1.290 INCHES NOMINAL SECOND END IN |
| Nominal Thread Size | 0.438 INCHES SECOND END IN |
| Nominal Thread Size | 0.562 INCHES FIRST END IN |
| Specification/standard Data | 81343-SAE J1453-3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nondefinitive Spec/std Data | 14 FIGURE |
| Surface Treatment | CHROMATE OVERALL |
| Thread Class | 2A ALL ENDS A |
| Material | STEEL COMP 12L14 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 | X |
| Part Number | Manufacturer |
|---|---|
| 1781330 | Oshkosh Defense Llc (USA) |
| 4C5OLO-S | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
| 12600849 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| SAE J1453-3 4-4 520220CA | 5/9 Secondary reference Sae International Dba Sae International |
| SAE-J1453/3 | 5/9 Secondary reference Sae International Dba Sae International |
| 849-TTO-04X04 | 5/9 Secondary reference Imperial |
| 4C5OLO-S | 5/9 Secondary reference U.S. Government activity |
| 17-2-0278-1 | 7/2 Vendor item drawing reference U.S. Government activity |
| FF1868T-0404S | 5/1 Secondary reference Danfoss Power Solutions II, Llc |
| J1453-3 | 5/9 Secondary reference U.S. Government activity |
| 4C5L-S | 5/1 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
| SAE J1453-3 4-4 520220CA | 3/9 Design control — primary reference U.S. Government activity |
| 4C5L-S | 5/9 Secondary reference U.S. Government activity |
| 1781330 | 5/9 Secondary reference Oshkosh Corp |
| 7-447-040403 | 5/1 Secondary reference Grove U.s. Llc Dba Grove Us Llc |
| 3949426C1 | 5/1 Secondary reference Nd Defense Llc |
| J1453 | 5/9 Secondary reference U.S. Government activity |
| J1453-3 | 5/1 Secondary reference Sae International Dba Sae International |
NSN 4730-01-280-8351 is a Elbow,tube to Boss, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-280-8351 has 3 manufacturer part numbers on file: 1781330 (Oshkosh Defense Llc), 4C5OLO-S (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division), 12600849 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-612-0396. Verify interchangeability with system specifications before substitution.
Key specifications for 12600849: Furnished Items and Quantity: 1 PREFORMED PACKING; Flow Angle: 90.0 DEGREES; Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END; Connection Style: GASKET SEAL (TUBE) FIRST 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.