The Insulation Sleeving,electrical, cataloged under National Stock Number 5970-01-662-4590, 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 Mcmaster-Carr Supply Co. Government technical data includes 3 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 | 5970-01-662-4590 |
| Primary Part Number | 6363K21 |
| Item Name | Insulation Sleeving,electrical |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Features Provided | ROHS DIRECTIVE COMPLIANCE |
| Color | BLACK |
| Material | PLASTIC POLYOLEFIN |
| 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 |
|---|---|
| 6363K21 PRIMARY | Mcmaster-Carr Supply Co (USA) |
NSN 5970-01-662-4590 is a Insulation Sleeving,electrical, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-662-4590 has 1 manufacturer part number on file: 6363K21 (Mcmaster-Carr Supply Co).
Key specifications for 6363K21: Overall Length: 0.60 FEET NOMINAL FT; Features Provided: ROHS DIRECTIVE COMPLIANCE; Color: BLACK; Special Features: INCLUDES 30 EACH 0.19 INCH ID BEFORE SHRINKING,28 EACH 0.25 INCH ID BEFORE SHRINKING,20 EACH 0.38 INCH ID BEFORE SHRINKING,14 EACH 0.5 INCH ID BEFORE SHRINKING,6 EACH 0.75 INCH ID BEFORE SHRINKING,4 EACH 1 INCH ID BEFORE SHRINKING;INSTALLATION TYPE SLIDE ON;SHRINK RATIO 2:1;SHRINK TEMPERATURE 215 DEGREE F;TEMPERATURE RANGE NEGATIVE 65 DEGREE TO 275 DEGREE F;CONSTRUCTION SOLID;SPECIFICATIONS MET UL RECOGNIZED,CSA CERTIFIED,AMS/MIL-DTL-23053/5 CLASS 1 IN. 3 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.