The Insulator,disk, cataloged under National Stock Number 5970-00-003-5331, 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 Northrop Grumman Systems Corporation. Government technical data includes 7 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-00-003-5331 |
| Primary Part Number | 1853786 |
| Item Name | Insulator,disk |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| First Hole Diameter | 2.750 INCHES NOMINAL IN |
| Style Designator | DRILLED, FLAT |
| Material Document and Classification | MIL-I-631, TYPE G, CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 5.240 INCHES NOMINAL IN |
| Second Hole Diameter | 0.125 INCHES NOMINAL IN |
| First Hole Spacing | 2.500 INCHES NOMINAL IN |
| Material | PLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5970-00-003-5331 is a Insulator,disk, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-00-003-5331 has 2 manufacturer part numbers on file: 1853786 (Northrop Grumman Systems Corporation), 1853786 (Northrop Grumman Systems Corporation).
Key specifications for 1853786: Overall Height: 0.010 INCHES NOMINAL IN; First Hole Diameter: 2.750 INCHES NOMINAL IN; Style Designator: DRILLED, FLAT; Material Document and Classification: MIL-I-631, TYPE G, CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 7 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.