The Ferrule,grooved Clamp Coupling, cataloged under National Stock Number 5340-01-056-0778, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-056-0778 |
| Item Name | Ferrule,grooved Clamp Coupling |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Material Document and Classification | STD D1900-9 05457 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | FLANGED |
| Wall Thickness | 0.047 INCHES NOMINAL IN |
| Flange Length | 0.105 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| Ferrule Inside Diameter | 0.250 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Flange Outside Diameter | 0.500 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Reference | Meaning |
|---|---|
| STD2196-44 | 5/9 Secondary reference British Aerospace North America Inc |
| STD2196-44 | C/1 Advisory reference — outside the item-of-supply concept Bae Systems (operations) Limited |
| STD2196-44 | 3/9 Design control — primary reference British Aerospace (military Aircraft & Aerostructures) |
NSN 5340-01-056-0778 is a Ferrule,grooved Clamp Coupling, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-01-056-0778: Material Document and Classification: STD D1900-9 05457 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Overall Length: 0.230 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN; Cross-Sectional Shape Style: FLANGED; Wall Thickness: 0.047 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.