The Coupling,clamp,grooved, cataloged under National Stock Number 5342-01-643-9020, is classified within Federal Supply Class 5342 (Hardware, Weapon System) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5342-01-643-9020 |
| Primary Part Number | 311-9236 |
| Item Name | Coupling,clamp,grooved |
| FSC / FSG | 5342 / 53 — Hardware, Weapon System |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Included Angle in Deg | 40.0 |
| Band Width | 22.1 MILLIMETERS NOMINAL MM |
| Root Width | 6.85 MILLIMETERS MINIMUM AND 7.35 MILLIMETERS MAXIMUM MM |
| Retainer Width | 22.2 MILLIMETERS NOMINAL MM |
| Shape | ROUND |
| Cross-Sectional Shape Style | GROOVED RETAINER |
| Band Thickness | 1.3 MILLIMETERS NOMINAL MM |
| Height | 7.35 MILLIMETERS MINIMUM AND 7.85 MILLIMETERS MAXIMUM MM |
| Nut Type | PLAIN HEXAGON |
| 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 |
|---|---|
| 311-9236 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 5342-01-643-9020 is a Coupling,clamp,grooved, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5342, Hardware, Weapon System. Status: active.
NSN 5342-01-643-9020 has 1 manufacturer part number on file: 311-9236 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 311-9236: Included Angle in Deg: 40.0; Band Width: 22.1 MILLIMETERS NOMINAL MM; Root Width: 6.85 MILLIMETERS MINIMUM AND 7.35 MILLIMETERS MAXIMUM MM; Retainer Width: 22.2 MILLIMETERS NOMINAL MM. 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.