The Clamp,loop, cataloged under National Stock Number 5340-00-763-0143, 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-763-0143 |
| Primary Part Number | S280D26 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Umpco, Inc. Dba Umpco Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-S-8625 TY 2 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE BAND |
| Style Designator | OFFSET MOUNT |
| Material Document and Classification | QQ-A-250/5,T4 FED SPEC SINGLE MATERIAL RESPONSE BAND |
| Diameter | 0.201 INCHES MINIMUM AND 0.209 INCHES MAXIMUM IN |
| Material Thickness | 0.047 INCHES MINIMUM AND 0.053 INCHES MAXIMUM IN |
| Distance From Loop Center to Tongue End | 1.453 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE BAND |
| Tongue Hole Type | ROUND, UNTHREADED |
| Center to Center Distance Between Loop and Mounting Hole | 1.235 INCHES NOMINAL IN |
| Material | PLASTIC TETRAFLUOROETHYLENE CUSHION |
| Material | ALUMINUM ALLOY 2024 BAND |
| Loop Inside Diameter | 1.625 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 |
|---|---|
| S280D26 | Umpco, Inc. Dba Umpco Inc (USA) |
| JM44LC9D26T | J & M Products, Inc (USA) |
| Reference | Meaning |
|---|---|
| 5340PL0845500 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 5340PL1971983 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| TA11C44D26T | 3/2 Design control — primary reference U.S. Government activity |
| C2874D26 | 7/2 Vendor item drawing reference U.S. Government activity |
| 477-26 | 5/2 Secondary reference U.S. Government activity |
| 280D26 | 5/9 Secondary reference Umpco, Inc. Dba Umpco Inc |
NSN 5340-00-763-0143 is a Clamp,loop, manufactured by Umpco, Inc. Dba Umpco Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-763-0143 has 2 manufacturer part numbers on file: S280D26 (Umpco, Inc. Dba Umpco Inc), JM44LC9D26T (J & M Products, Inc).
1 possible match (shared part number, not a government interchangeability claim): 5310-00-834-7606. Verify interchangeability with system specifications before substitution.
Key specifications for S280D26: Surface Treatment Document and Classification: MIL-S-8625 TY 2 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE BAND; Style Designator: OFFSET MOUNT; Material Document and Classification: QQ-A-250/5,T4 FED SPEC SINGLE MATERIAL RESPONSE BAND; Diameter: 0.201 INCHES MINIMUM AND 0.209 INCHES MAXIMUM 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.