The Insulator,washer, cataloged under National Stock Number 5970-01-039-9679, 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 Dba Northrop Grumman Systems Corp. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5970-01-039-9679 |
| Primary Part Number | 860313-4 |
| Item Name | Insulator,washer |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Style Designator | ROUND, FLAT |
| Material Document and Classification | MIL-P-15037-CANCELLED/REPLACED BY MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-I-24768/1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.437 INCHES NOMINAL IN |
| Inside Diameter | 0.195 INCHES NOMINAL IN |
| Material | PLASTIC MELAMINE AND GLASS 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 |
|---|---|
| 860313-4 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| 860313G | D/9 Drawing number reference only Litton Systems Inc. Div Navigation Systems Division |
| 860313-4 | 3/9 Design control — primary reference Litton Systems Inc. Div Navigation Systems Division |
NSN 5970-01-039-9679 is a Insulator,washer, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-039-9679 has 1 manufacturer part number on file: 860313-4 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
1 possible match (shared part number, not a government interchangeability claim): 5970-01-040-9895. Verify interchangeability with system specifications before substitution.
Key specifications for 860313-4: Overall Height: 0.030 INCHES NOMINAL IN; Style Designator: ROUND, FLAT; Material Document and Classification: MIL-P-15037-CANCELLED/REPLACED BY MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-I-24768/1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.437 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.