The Insulator,strain, cataloged under National Stock Number 5970-00-356-0633, 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 Birnbach Co Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5970-00-356-0633 |
| Primary Part Number | 474 |
| Item Name | Insulator,strain |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Birnbach Co Inc |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 UNTHREADED HOLE(S) |
| First Corner Radius | 0.156 INCHES NOMINAL IN |
| Wire Hole Diameter | 0.250 INCHES NOMINAL IN |
| Identification Code Color | WHITE |
| First Distance From Conductor Hole to Insulator End | 0.406 INCHES NOMINAL IN |
| Style Designator | GUY, MISCELLANEOUS |
| Outside Diameter | 0.562 INCHES NOMINAL IN |
| Conductor Separation Distance | 0.625 INCHES NOMINAL IN |
| Material | PORCELAIN OVERALL |
| 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 |
|---|---|
| 474 PRIMARY | Birnbach Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 125M1-2-2-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5970-00-356-0633 is a Insulator,strain, manufactured by Birnbach Co Inc, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-00-356-0633 has 1 manufacturer part number on file: 474 (Birnbach Co Inc).
Key specifications for 474: Mounting Facility Type and Quantity: 1 UNTHREADED HOLE(S); First Corner Radius: 0.156 INCHES NOMINAL IN; Wire Hole Diameter: 0.250 INCHES NOMINAL IN; Identification Code Color: WHITE. 9 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.