The Insulator,washer, cataloged under National Stock Number 5970-01-121-9772, 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 Honeywell International Inc. Dba Honeywell International. Government technical data includes 4 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-01-121-9772 |
| Primary Part Number | ST990019-005 |
| Item Name | Insulator,washer |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Honeywell International Inc. Dba Honeywell International |
| Status | ACTIVE |
| Style Designator | ROUND, FLAT |
| Outside Diameter | 0.510 INCHES NOMINAL IN |
| Inside Diameter | 0.200 INCHES NOMINAL IN |
| Material | OVERALL SILICONE RUBBER,FIBERGLASS LAMINATE/SIL-PADS 400/,BERGQUIST CO |
| 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 |
|---|---|
| ST990019-005 | Honeywell International Inc. Dba Honeywell International (USA) |
| Reference | Meaning |
|---|---|
| 10134098 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 7403-09FR-20K | 3/9 Design control — primary reference Henkel Corporation |
| 7109303-003 | 7/2 Vendor item drawing reference U.S. Government activity |
| 7403-09FR-20 | C/1 Advisory reference — outside the item-of-supply concept Henkel Corporation |
NSN 5970-01-121-9772 is a Insulator,washer, manufactured by Honeywell International Inc. Dba Honeywell International, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-121-9772 has 1 manufacturer part number on file: ST990019-005 (Honeywell International Inc. Dba Honeywell International).
Key specifications for ST990019-005: Overall Height: 0.009 INCHES NOMINAL IN; Style Designator: ROUND, FLAT; Outside Diameter: 0.510 INCHES NOMINAL IN; Inside Diameter: 0.200 INCHES NOMINAL IN. 4 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.