The Insulator,washer, cataloged under National Stock Number 5970-01-188-2791, 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. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-01-188-2791 |
| Primary Part Number | 337347-2 |
| Item Name | Insulator,washer |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Style Designator | ROUND, FLAT |
| Outside Diameter | 0.625 INCHES NOMINAL IN |
| Inside Diameter | 0.192 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN |
| Material | MICA 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 |
|---|---|
| 1884478 ITEM 10 | Northrop Grumman Systems Corporation (USA) |
| 337347-2 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| WD264 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5970-01-188-2791 is a Insulator,washer, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-188-2791 has 2 manufacturer part numbers on file: 1884478 ITEM 10 (Northrop Grumman Systems Corporation), 337347-2 (Northrop Grumman Systems Corporation).
Key specifications for 337347-2: Overall Height: 0.005 INCHES NOMINAL IN; Style Designator: ROUND, FLAT; Outside Diameter: 0.625 INCHES NOMINAL IN; Inside Diameter: 0.192 INCHES MINIMUM AND 0.200 INCHES MAXIMUM 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.