The Coupling,clamp,grooved, cataloged under National Stock Number 5342-00-330-8387, is classified within Federal Supply Class 5342 (Hardware, Weapon System) of the Hardware and Abrasives group. The manufacturer of record is General Motors Corp. Government technical data includes 16 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5342-00-330-8387 |
| Primary Part Number | 6780787 |
| Item Name | Coupling,clamp,grooved |
| FSC / FSG | 5342 / 53 — Hardware, Weapon System |
| Manufacturer | General Motors Corp |
| Status | ACTIVE |
| Included Angle in Deg | 40.0 |
| Temp Rating | 1200.0 CELSIUS DEGC |
| Band Width | 0.750 INCHES NOMINAL IN |
| Root Width | 0.212 INCHES NOMINAL IN |
| Retainer Width | 0.719 INCHES NOMINAL IN |
| Shape | ROUND |
| Cross-Sectional Shape Style | GROOVED RETAINER |
| Band Thickness | 0.025 INCHES NOMINAL IN |
| Sealing Inner Liner | NOT INCLUDED |
| Retainer Thickness | 0.050 INCHES NOMINAL IN |
| Inside Diameter | 2.810 INCHES NOMINAL IN |
| Height | 0.281 INCHES NOMINAL IN |
| Nut Type | SELF-LOCKING HEXAGON |
| Segment Quantity | 2 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Latch Style | SINGLE |
| 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 |
|---|---|
| 6780787 | General Motors Corp (USA) |
| 18173C281M | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| 6780787 | Rolls-Royce Corporation (USA) |
| Reference | Meaning |
|---|---|
| 18173C281M | 5/9 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 |
| 4201BR | 3/2 Design control — primary reference U.S. Government activity |
| 6780787 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
| U4201S13 | 5/9 Secondary reference U.S. Government activity |
NSN 5342-00-330-8387 is a Coupling,clamp,grooved, manufactured by General Motors Corp, classified under FSC 5342, Hardware, Weapon System. Status: active.
NSN 5342-00-330-8387 has 3 manufacturer part numbers on file: 6780787 (General Motors Corp), 18173C281M (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), 6780787 (Rolls-Royce Corporation).
Key specifications for 6780787: Included Angle in Deg: 40.0; Temp Rating: 1200.0 CELSIUS DEGC; Band Width: 0.750 INCHES NOMINAL IN; Root Width: 0.212 INCHES NOMINAL IN. 16 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.