The Clamp,loop, cataloged under National Stock Number 5340-01-416-4367, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Umpco, Inc. Dba Umpco Inc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-416-4367 |
| Primary Part Number | S656SS19 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Umpco, Inc. Dba Umpco Inc |
| Status | ACTIVE |
| Style Designator | OFFSET MOUNT |
| Material Document and Classification | MIL-S-5059 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6721 MIL SPEC 2ND MATERIAL RESPONSE BAND |
| Diameter | 0.204 INCHES NOMINAL IN |
| Material Thickness | 0.051 INCHES NOMINAL IN |
| Distance From Loop Center to Tongue End | 1.387 INCHES MINIMUM AND 1.417 INCHES MAXIMUM IN |
| Specification/standard Data | 80205-NAS1715 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Surface Treatment | PASSIVATE BAND |
| Environmental Attribute Code | ASBESTOS ALTERNATIVE PRODUCTS |
| Tongue Hole Type | ROUND, UNTHREADED |
| Center to Center Distance Between Loop and Mounting Hole | 1.168 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN |
| Material | STEEL COMP 302 OR STEEL COMP 321 BAND |
| Loop Inside Diameter | 1.177 INCHES MINIMUM AND 1.197 INCHES MAXIMUM 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 |
|---|---|
| S656SS19 | Umpco, Inc. Dba Umpco Inc (USA) |
| 9M983C19 | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| NAS1715C19Z | 3/2 Design control — primary reference U.S. Government activity |
| 11437SS19PB | 5/2 Secondary reference U.S. Government activity |
| JM44LC90SS19PB | C/1 Advisory reference — outside the item-of-supply concept J & M Products, Inc |
| NAS1715 | 3/1 Design control — primary reference U.S. Government activity |
NSN 5340-01-416-4367 is a Clamp,loop, manufactured by Umpco, Inc. Dba Umpco Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-416-4367 has 2 manufacturer part numbers on file: S656SS19 (Umpco, Inc. Dba Umpco Inc), 9M983C19 (The Boeing Company Div Defense).
Key specifications for S656SS19: Style Designator: OFFSET MOUNT; Material Document and Classification: MIL-S-5059 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6721 MIL SPEC 2ND MATERIAL RESPONSE BAND; Diameter: 0.204 INCHES NOMINAL IN; Overall Width: 0.500 INCHES NOMINAL IN. 12 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.