The Clamp,loop, cataloged under National Stock Number 5340-01-336-6531, 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 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-336-6531 |
| Primary Part Number | S630G6 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Umpco, Inc. Dba Umpco Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | ASTM B633 TY 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | OFFSET MOUNT |
| Material Document and Classification | QQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.281 INCHES NOMINAL IN |
| Material Thickness | 0.030 INCHES NOMINAL IN |
| Distance From Loop Center to Tongue End | 0.834 INCHES NOMINAL IN |
| Surface Treatment | ZINC OVERALL |
| Tongue Hole Type | ROUND, UNTHREADED |
| Center to Center Distance Between Loop and Mounting Hole | 0.464 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN |
| Material | STEEL COMP 1008 OVERALL |
| Loop Inside Diameter | 0.375 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 |
|---|---|
| 23-09528-010 | Daimler Truck North America Llc (USA) |
| S630G6 PRIMARY | Umpco, Inc. Dba Umpco Inc (USA) |
| Reference | Meaning |
|---|---|
| S630G6 ZZ | 5/9 Secondary reference Umpco, Inc. Dba Umpco Inc |
NSN 5340-01-336-6531 is a Clamp,loop, manufactured by Umpco, Inc. Dba Umpco Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-336-6531 has 2 manufacturer part numbers on file: 23-09528-010 (Daimler Truck North America Llc), S630G6 (Umpco, Inc. Dba Umpco Inc).
Key specifications for S630G6: Surface Treatment Document and Classification: ASTM B633 TY 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Style Designator: OFFSET MOUNT; Material Document and Classification: QQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Diameter: 0.281 INCHES NOMINAL IN. 11 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.