The Insulator,angle Bracket, cataloged under National Stock Number 5970-01-066-4256, is classified within Federal Supply Class 5970 (Electrical Insulators and Insulating Materials) of the Electrical and Electronic Equipment Components group. The manufacturer of record is O T S I. Government technical data includes 16 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.
| Parameter | Value |
|---|---|
| NSN | 5970-01-066-4256 |
| Primary Part Number | C64163 |
| Item Name | Insulator,angle Bracket |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | O T S I |
| Status | ACTIVE |
| Vertical Distance From Edge to Hole Center | 0.438 INCHES NOMINAL IN |
| Angle | 90.0 DEGREES |
| Horizontal Distance Between Hole Centers | 1.469 INCHES NOMINAL IN |
| Second Leg Length | 0.906 INCHES NOMINAL IN |
| Hole Arrangement Style | TWO POSITION |
| Reinforcement Feature | NOT PROVIDED |
| Leg Corner Radius | 0.125 INCHES NOMINAL IN |
| Horizontal Distance From Edge to Hole Center | 0.984 INCHES NOMINAL IN |
| Unit Package Quantity | 1 |
| Second Leg Thickness | 0.125 INCHES NOMINAL IN |
| Hole Diameter/size | 0.186 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN |
| Leg Width | 3.438 INCHES NOMINAL IN |
| First Leg Thickness | 0.125 INCHES NOMINAL IN |
| First Leg Length | 1.500 INCHES NOMINAL IN |
| Leg Style Designator | SQUARE W/ROUND CORNERS |
| Material | GLASS FIBER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| C64163 PRIMARY | O T S I (USA) |
NSN 5970-01-066-4256 is a Insulator,angle Bracket, manufactured by O T S I, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-066-4256 has 1 manufacturer part number on file: C64163 (O T S I).
Key specifications for C64163: Vertical Distance From Edge to Hole Center: 0.438 INCHES NOMINAL IN; Angle: 90.0 DEGREES; Horizontal Distance Between Hole Centers: 1.469 INCHES NOMINAL IN; Second Leg Length: 0.906 INCHES NOMINAL IN. 16 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.