The Coupling,tube, cataloged under National Stock Number 4730-00-451-6686, 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 Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-451-6686 |
| Primary Part Number | 6502S1-250 |
| Item Name | Coupling,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| Status | ACTIVE |
| Furnished Items and Quantity | 2 BOLT AND 2 LOCKNUT |
| Connection Style | CLAMPING W/ GASKET SEAL (TUBE) ALL ENDSCLAMPING W/ GASKET SEAL (TUBE) ALL ENDS |
| Nominal Overall Length | 2.750 INCHES IN |
| Connection Type | GROOVED COUPLING ALL ENDSGROOVED COUPLING ALL ENDS |
| Style Designator | COMPRESSION CLAMP TYPE (FLEXMASTER) |
| Material Document and Classification | MIL-STD-130 MIL STD ALL MATERIAL RESPONSES OVERALL |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Surface Treatment | ZINC OR CADMIUM OVERALL |
| Nominal Coupling Size Accommodated | 1.250 INCHES ALL ENDS IN |
| Material | STEEL OR SILICON OVERALL |
| 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 |
|---|---|
| NH1625S100B0250 | Danfoss Power Solutions II, Llc (USA) |
| 6502S1-250 PRIMARY | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| NH100819-100 PRIMARY | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| Reference | Meaning |
|---|---|
| 6502S1-250 | 5/9 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 |
| 2587198 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 4730-00-451-6686 is a Coupling,tube, manufactured by Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-451-6686 has 3 manufacturer part numbers on file: NH1625S100B0250 (Danfoss Power Solutions II, Llc), 6502S1-250 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), NH100819-100 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution).
Key specifications for 6502S1-250: Furnished Items and Quantity: 2 BOLT AND 2 LOCKNUT; Connection Style: CLAMPING W/ GASKET SEAL (TUBE) ALL ENDSCLAMPING W/ GASKET SEAL (TUBE) ALL ENDS; Nominal Overall Length: 2.750 INCHES IN; Connection Type: GROOVED COUPLING ALL ENDSGROOVED COUPLING ALL ENDS. 10 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.