The Clamp,loop, cataloged under National Stock Number 5340-01-420-5140, 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 13 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-420-5140 |
| Primary Part Number | S830H40 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Umpco, Inc. Dba Umpco Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | ASTM-B-633, TYPE 2 ASSN STD SINGLE TREATMENT RESPONSE BAND |
| Style Designator | SINGLE LOOP |
| Material Document and Classification | AMS 3303 ASSN STD SINGLE MATERIAL RESPONSE CUSHION |
| Material Document and Classification | QQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE BAND |
| Diameter | 7.14 MILLIMETERS NOMINAL MM |
| Material Thickness | 1.5200 MILLIMETERS NOMINAL MM |
| Distance From Loop Center to Tongue End | 54.96 MILLIMETERS NOMINAL MM |
| Surface Treatment | ZINC AND CHROMATE BAND |
| Tongue Hole Type | ROUND, UNTHREADED |
| Center to Center Distance Between Loop and Mounting Hole | 45.31 MILLIMETERS NOMINAL MM |
| Material | RUBBER SILICONE CLASS Q CUSHION |
| Material | STEEL COMP 1008 BAND |
| Loop Inside Diameter | 63.5 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 12419079-009 | Amz Alabama Inc. (USA) |
| 12419079-009 | Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc (USA) |
| S830H40 PRIMARY | Umpco, Inc. Dba Umpco Inc (USA) |
| S630H40 | Umpco, Inc. Dba Umpco Inc (USA) |
| Reference | Meaning |
|---|---|
| 12419079-009 | 7/2 Vendor item drawing reference U S Army Tank Automotive Command Amsta-Im-Mm |
| 5630H-40 | 5/9 Secondary reference Umpco, Inc. Dba Umpco Inc |
NSN 5340-01-420-5140 is a Clamp,loop, manufactured by Umpco, Inc. Dba Umpco Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-420-5140 has 4 manufacturer part numbers on file: 12419079-009 (Amz Alabama Inc.), 12419079-009 (Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc), S830H40 (Umpco, Inc. Dba Umpco Inc), S630H40 (Umpco, Inc. Dba Umpco Inc).
Key specifications for S830H40: Surface Treatment Document and Classification: ASTM-B-633, TYPE 2 ASSN STD SINGLE TREATMENT RESPONSE BAND; Style Designator: SINGLE LOOP; Material Document and Classification: AMS 3303 ASSN STD SINGLE MATERIAL RESPONSE CUSHION; Material Document and Classification: QQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE BAND. 13 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.