The Coupling,clamp,grooved, cataloged under National Stock Number 5342-01-203-6503, is classified within Federal Supply Class 5342 (Hardware, Weapon System) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Legacy Am&m. Government technical data includes 11 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 | 5342-01-203-6503 |
| Primary Part Number | LE261-0019-0450 |
| Item Name | Coupling,clamp,grooved |
| FSC / FSG | 5342 / 53 — Hardware, Weapon System |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| Included Angle in Deg | 40.0 |
| Retainer Width | 0.450 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5525, COMP 660 ASSN STD SINGLE MATERIAL RESPONSE RETAINER |
| Material Document and Classification | AMS 5732, COMP 660 ASSN STD SINGLE MATERIAL RESPONSE BOLT |
| Shape | ROUND |
| Sealing Inner Liner | NOT INCLUDED |
| Inside Diameter | 4.600 INCHES MINIMUM IN |
| Nut Type | SELF-LOCKING HEXAGON |
| Segment Quantity | 2 |
| Material | IRON ALLOY 660 BOLT |
| Material | IRON ALLOY 660 RETAINER |
| 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 |
|---|---|
| LE261-0019-0450 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
| 5980-450 | Eaton Corporation Div Fed (USA) |
NSN 5342-01-203-6503 is a Coupling,clamp,grooved, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 5342, Hardware, Weapon System. Status: active.
NSN 5342-01-203-6503 has 2 manufacturer part numbers on file: LE261-0019-0450 (The Boeing Company Div Legacy Am&m), 5980-450 (Eaton Corporation Div Fed).
Key specifications for LE261-0019-0450: Included Angle in Deg: 40.0; Retainer Width: 0.450 INCHES MAXIMUM IN; Material Document and Classification: AMS 5525, COMP 660 ASSN STD SINGLE MATERIAL RESPONSE RETAINER; Material Document and Classification: AMS 5732, COMP 660 ASSN STD SINGLE MATERIAL RESPONSE BOLT. 11 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.