The Insulator,disk, cataloged under National Stock Number 5970-00-490-9915, is classified within Federal Supply Class 5970 (Electrical Insulators and Insulating Materials) of the Electrical and Electronic Equipment Components group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5970-00-490-9915 |
| Item Name | Insulator,disk |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Status | ACTIVE |
| Style Designator | FLAT, ROUND |
| Outside Diameter | 0.510 INCHES NOMINAL IN |
| Material | OVERALL,CERAMIC,MIL-I-10,CLASS L |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 784687B | D/9 Drawing number reference only U.S. Government activity |
| 784687-1 | 7/2 Vendor item drawing reference U.S. Government activity |
| CT71041A | 3/9 Design control — primary reference Advanced Technical Ceramics Company Dba Advanced Technical Ceramics Co Div Adtech Ceramics |
| 788254-1 | 5/9 Secondary reference U.S. Government activity |
| CT71041A | 5/9 Secondary reference General Electric Ceramics Inc Sub of General Electric Co |
NSN 5970-00-490-9915 is a Insulator,disk, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 1660-01-205-7604. Verify interchangeability with system specifications before substitution.
Key specifications for 5970-00-490-9915: Overall Height: 0.025 INCHES NOMINAL IN; Style Designator: FLAT, ROUND; Outside Diameter: 0.510 INCHES NOMINAL IN; Material: OVERALL,CERAMIC,MIL-I-10,CLASS L. 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.