The Insulator,washer, cataloged under National Stock Number 5970-01-509-5520, 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 Div Aerospace-Tucson. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-01-509-5520 |
| Primary Part Number | 1539571 |
| Item Name | Insulator,washer |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Honeywell International, Inc Div Aerospace-Tucson |
| Status | ACTIVE |
| Style Designator | ROUND, FLAT |
| Material Document and Classification | MIL-P-15037, TYPE GMG MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.312 INCHES NOMINAL IN |
| Inside Diameter | 0.116 INCHES NOMINAL IN |
| 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 |
|---|---|
| 1539571 PRIMARY | Honeywell International, Inc Div Aerospace-Tucson (USA) |
NSN 5970-01-509-5520 is a Insulator,washer, manufactured by Honeywell International, Inc Div Aerospace-Tucson, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-509-5520 has 1 manufacturer part number on file: 1539571 (Honeywell International, Inc Div Aerospace-Tucson).
Key specifications for 1539571: Overall Height: 0.062 INCHES NOMINAL IN; Style Designator: ROUND, FLAT; Material Document and Classification: MIL-P-15037, TYPE GMG MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.312 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.