The Ferrule,grooved Clamp Coupling, cataloged under National Stock Number 5340-00-166-8636, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is R. H. Sheppard Co., Inc. Dba Sheppard. Government technical data includes 5 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-166-8636 |
| Primary Part Number | 2531191 |
| Item Name | Ferrule,grooved Clamp Coupling |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | R. H. Sheppard Co., Inc. Dba Sheppard |
| Status | ACTIVE |
| Cross-Sectional Shape Style | FLANGED |
| Wall Thickness | 0.038 INCHES NOMINAL IN |
| Ferrule Inside Diameter | 1.000 INCHES MINIMUM AND 1.003 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Flange Outside Diameter | 1.380 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 |
| Part Number | Manufacturer |
|---|---|
| 2531191 PRIMARY | R. H. Sheppard Co., Inc. Dba Sheppard (USA) |
NSN 5340-00-166-8636 is a Ferrule,grooved Clamp Coupling, manufactured by R. H. Sheppard Co., Inc. Dba Sheppard, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-166-8636 has 1 manufacturer part number on file: 2531191 (R. H. Sheppard Co., Inc. Dba Sheppard).
1 possible match (shared part number, not a government interchangeability claim): 5120-00-704-9801. Verify interchangeability with system specifications before substitution.
Key specifications for 2531191: Overall Length: 0.480 INCHES NOMINAL IN; Cross-Sectional Shape Style: FLANGED; Wall Thickness: 0.038 INCHES NOMINAL IN; Ferrule Inside Diameter: 1.000 INCHES MINIMUM AND 1.003 INCHES MAXIMUM IN. 5 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.