The Insulator,washer, cataloged under National Stock Number 5970-00-685-8540, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 5 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 | 5970-00-685-8540 |
| Primary Part Number | 57A5A906-1 |
| Item Name | Insulator,washer |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Style Designator | ROUND, FLAT |
| Material Document and Classification | PLASTIC, PHENOLIC, MIL-P-15047, TYPE NPG-CANCELLED/REPLACED MIL-I-24768/9 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.440 INCHES NOMINAL IN |
| Inside Diameter | 0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| Material | PLASTIC POLYAMIDE NYLON AND PLASTIC PHENOLIC OVERALL |
| 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 |
|---|---|
| 57A5A906-1 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 57A5A906-1 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 5970-00-685-8540 is a Insulator,washer, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-00-685-8540 has 2 manufacturer part numbers on file: 57A5A906-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 57A5A906-1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 57A5A906-1: Overall Height: 0.047 INCHES NOMINAL IN; Style Designator: ROUND, FLAT; Material Document and Classification: PLASTIC, PHENOLIC, MIL-P-15047, TYPE NPG-CANCELLED/REPLACED MIL-I-24768/9 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.440 INCHES NOMINAL IN. 5 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.