The Clamp,loop, cataloged under National Stock Number 5340-01-288-6728, 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 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-288-6728 |
| Primary Part Number | 9M875D56 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Umpco, Inc. Dba Umpco Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE NUT |
| Fastening Device Type | SELF-LOCKING HEXAGON NUT |
| Style Designator | CENTER MOUNT |
| Material Document and Classification | QQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE BAND |
| Diameter | 0.204 INCHES NOMINAL IN |
| Material Thickness | 0.031 INCHES NOMINAL IN |
| Distance From Loop Center to Tongue End | 2.249 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE NUT |
| Integral Nut Type and Quantity | 1 SELF-LOCKING EQUAL LENGTH TONGUES |
| Tongue Hole Type | ROUND, UNTHREADED |
| Center to Center Distance Between Loop and Mounting Hole | 2.062 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2017 NUT |
| Material | ALUMINUM ALLOY 2024 BAND |
| Loop Inside Diameter | 3.500 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 |
|---|---|
| 9M875D56 PRIMARY | Umpco, Inc. Dba Umpco Inc (USA) |
| Reference | Meaning |
|---|---|
| 9M875D56 | 5/9 Secondary reference The Boeing Company Div Defense |
| 9M875D56 | 5/9 Secondary reference U.S. Government activity |
NSN 5340-01-288-6728 is a Clamp,loop, manufactured by Umpco, Inc. Dba Umpco Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-288-6728 has 1 manufacturer part number on file: 9M875D56 (Umpco, Inc. Dba Umpco Inc).
Key specifications for 9M875D56: Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE NUT; Fastening Device Type: SELF-LOCKING HEXAGON NUT; Style Designator: CENTER MOUNT; Material Document and Classification: QQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE BAND. 14 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.