The Insulation Sleeving,electrical, cataloged under National Stock Number 5970-01-422-5745, 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 3m Company. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-01-422-5745 |
| Primary Part Number | SMS450 |
| Item Name | Insulation Sleeving,electrical |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | 3m Company |
| Status | ACTIVE |
| Expanded Inside Diameter | 0.450 INCHES MINIMUM IN |
| Style Designator | SHRINKABLE |
| Flexibility | SEMIRIGID |
| Recovered Wall Thickness | 0.053 INCHES MINIMUM IN |
| Recovered Inside Diameter | 0.105 INCHES MAXIMUM IN |
| Dielectric Material Voltage Rating Per Unit Thickness | 500.0 VOLTS PER MIL /0.001 INCH/ IN |
| Reliability Indicator | NOT ESTABLISHED |
| Color | BLACK |
| Minimum Tensile Strength | 1900 POUNDS PER SQUARE INCH LBS |
| 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 |
|---|---|
| SMS450 PRIMARY | 3m Company (USA) |
| 12420929-002 | Amz Alabama Inc. (USA) |
| 12420929-002 | Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc (USA) |
| Reference | Meaning |
|---|---|
| SMS450 | 5/9 Secondary reference 3m Company Dba 3m |
| 12420929-002 | 7/2 Vendor item drawing reference U S Army Tank Automotive Command Amsta-Im-Mm |
| SMS450 | 3/9 Design control — primary reference Minnesota Mining and Mfg Co 3m Company |
| SMS450 | 5/9 Secondary reference 3m Co Admininistrative Electronic & Communications |
| 12420929 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 5970-01-422-5745 is a Insulation Sleeving,electrical, manufactured by 3m Company, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-422-5745 has 3 manufacturer part numbers on file: SMS450 (3m Company), 12420929-002 (Amz Alabama Inc.), 12420929-002 (Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc).
1 possible match (shared part number, not a government interchangeability claim): 5970-01-422-5748. Verify interchangeability with system specifications before substitution.
Key specifications for SMS450: Expanded Inside Diameter: 0.450 INCHES MINIMUM IN; Style Designator: SHRINKABLE; Flexibility: SEMIRIGID; Overall Length: 4.000 FEET NOMINAL FT. 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.