The Ferrule,grooved Clamp Coupling, cataloged under National Stock Number 5340-00-478-0383, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-478-0383 |
| Item Name | Ferrule,grooved Clamp Coupling |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Surface Treatment Document and Classification | S-199 FSCM 80249 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | ASTM A582 TY 303 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Ferrule Inside Diameter | 0.250 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 303 OVERALL |
| Flange Outside Diameter | 40.625 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 |
|---|---|
| 340297-1 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5340-00-478-0383 is a Ferrule,grooved Clamp Coupling, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-00-478-0383: Surface Treatment Document and Classification: S-199 FSCM 80249 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: ASTM A582 TY 303 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Overall Length: 0.375 INCHES NOMINAL IN; Ferrule Inside Diameter: 0.250 INCHES NOMINAL IN. 6 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.