The Insulation Sleeving,electrical, cataloged under National Stock Number 5970-00-983-7960, 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 Markel Corp.. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-00-983-7960 |
| Primary Part Number | PO135 3/8IN BROWN |
| Item Name | Insulation Sleeving,electrical |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Markel Corp. |
| Status | ACTIVE |
| Temp Rating | -55.0 CELSIUS AND 135.0 CELSIUS DEGC |
| Expanded Inside Diameter | 0.375 INCHES MINIMUM IN |
| Style Designator | SHRINKABLE |
| Flexibility | FLEXIBLE |
| Recovered Wall Thickness | 0.022 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN |
| Recovered Inside Diameter | 0.187 INCHES MAXIMUM IN |
| Heat Shrinkage Rating in Percent | 50.0 |
| Dielectric Material Voltage Rating Per Unit Thickness | 500.0 VOLTS PER MIL /0.001 INCH/ IN |
| Reliability Indicator | NOT ESTABLISHED |
| Color | BROWN |
| Environmental Protection | CORROSION RESISTANT AND FLAME RESISTANT AND MILDEW RESISTANT AND WATER RESISTANT |
| Minimum Tensile Strength | 1500 POUNDS PER SQUARE INCH LBS |
| Material | PLASTIC CROSS-LINKED 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 |
|---|---|
| PO135 3/8IN BROWN PRIMARY | Markel Corp. (USA) |
| M23053/5-107-1 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| MIL-I-23053/5 | 5/9 Secondary reference U.S. Government activity |
| FP301-1 3/8IN BROWN | 5/9 Secondary reference 3m Co Admininistrative Electronic & Communications |
| FP301-1 3/8IN BROWN | C/1 Advisory reference — outside the item-of-supply concept 3m Company Dba 3m |
| M23053/5-107-1 | 5/9 Secondary reference U.S. Government activity |
| 1147AS984-7 | C/1 Advisory reference — outside the item-of-supply concept Te Connectivity Corporation Dba Raychem Product Division |
| 5970PL0845875 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| SAE-AS23053/5 | 3/1 Design control — primary reference Sae International Dba Sae International |
| ASM-DTL-23053/5 | 5/1 Secondary reference Sae International Dba Sae International |
| M23053/5-107-1 | 5/9 Secondary reference U.S. Government activity |
| ASM-DTL-23053/5 | 5/9 Secondary reference U.S. Government activity |
NSN 5970-00-983-7960 is a Insulation Sleeving,electrical, manufactured by Markel Corp., classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-00-983-7960 has 2 manufacturer part numbers on file: PO135 3/8IN BROWN (Markel Corp.), M23053/5-107-1 (Sae International Dba Sae International).
Key specifications for PO135 3/8IN BROWN: Temp Rating: -55.0 CELSIUS AND 135.0 CELSIUS DEGC; Expanded Inside Diameter: 0.375 INCHES MINIMUM IN; Style Designator: SHRINKABLE; Flexibility: FLEXIBLE. 13 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.