The Clamp,loop, cataloged under National Stock Number 5340-01-582-4441, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is J & M Products, Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-582-4441 |
| Primary Part Number | JM44LC28WD17YN |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | J & M Products, Inc |
| Status | ACTIVE |
| Style Designator | SINGLE LOOP |
| Material Thickness | 0.045 INCHES NOMINAL IN |
| Distance From Loop Center to Tongue End | 1.297 INCHES NOMINAL IN |
| Center to Center Distance Between Loop and Mounting Hole | 1.002 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2024 BAND |
| Material | RUBBER BUTADIENE NITRILE CUSHION |
| Loop Inside Diameter | 1.063 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 |
|---|---|
| S663WDF17 | Umpco, Inc. Dba Umpco Inc (USA) |
| JM44LC28WD17YN PRIMARY | J & M Products, Inc (USA) |
| Reference | Meaning |
|---|---|
| TA0220060WNB17 | 5/2 Secondary reference U.S. Government activity |
| ST9M588WDF17 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
NSN 5340-01-582-4441 is a Clamp,loop, manufactured by J & M Products, Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-582-4441 has 2 manufacturer part numbers on file: S663WDF17 (Umpco, Inc. Dba Umpco Inc), JM44LC28WD17YN (J & M Products, Inc).
Key specifications for JM44LC28WD17YN: Style Designator: SINGLE LOOP; Overall Width: 0.500 INCHES NOMINAL IN; Material Thickness: 0.045 INCHES NOMINAL IN; Distance From Loop Center to Tongue End: 1.297 INCHES NOMINAL IN. 7 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.