The Clamp,loop, cataloged under National Stock Number 5340-01-580-5761, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 6 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-580-5761 |
| Primary Part Number | 3177T78 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Cushioning Environmental Protection | OZONE RESISTANT AND FLAME RESISTANT AND OIL RESISTANT |
| Diameter | 0.281 INCHES NOMINAL IN |
| Material Thickness | 0.031 INCHES NOMINAL IN |
| Tongue Hole Type | ROUND, UNTHREADED |
| Material | RUBBER CUSHION |
| Material | STEEL CORROSION RESISTING OVERALL |
| 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 |
|---|---|
| 3177T78 PRIMARY | Mcmaster-Carr Supply Co (USA) |
NSN 5340-01-580-5761 is a Clamp,loop, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-580-5761 has 1 manufacturer part number on file: 3177T78 (Mcmaster-Carr Supply Co).
Key specifications for 3177T78: Cushioning Environmental Protection: OZONE RESISTANT AND FLAME RESISTANT AND OIL RESISTANT; Diameter: 0.281 INCHES NOMINAL IN; Overall Length: 2.563 INCHES NOMINAL IN; Overall Width: 0.500 INCHES NOMINAL IN. 6 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.