The Clamp,loop, cataloged under National Stock Number 5340-01-400-5820, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-400-5820 |
| Primary Part Number | HS5677-1 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-P-23377 TY 1 CL 3 MIL SPEC SINGLE TREATMENT RESPONSE BAND |
| Style Designator | SINGLE LOOP |
| Material Document and Classification | QQ-A-250/11 T6 FED SPEC SINGLE MATERIAL RESPONSE BAND |
| Diameter | 0.218 INCHES NOMINAL IN |
| Material Thickness | 0.030 INCHES NOMINAL IN |
| Distance From Loop Center to Tongue End | 1.418 INCHES NOMINAL IN |
| Surface Treatment | PRIMER BAND |
| Tongue Hole Type | ROUND, UNTHREADED |
| Center to Center Distance Between Loop and Mounting Hole | 1.200 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 6061 BAND |
| 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 |
|---|---|
| HS5677-1 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| TA12800005 | 5/2 Secondary reference U.S. Government activity |
NSN 5340-01-400-5820 is a Clamp,loop, manufactured by The Boeing Company, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-400-5820 has 1 manufacturer part number on file: HS5677-1 (The Boeing Company).
Key specifications for HS5677-1: Surface Treatment Document and Classification: MIL-P-23377 TY 1 CL 3 MIL SPEC SINGLE TREATMENT RESPONSE BAND; Style Designator: SINGLE LOOP; Material Document and Classification: QQ-A-250/11 T6 FED SPEC SINGLE MATERIAL RESPONSE BAND; Diameter: 0.218 INCHES NOMINAL IN. 10 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.