The Insulator,washer, cataloged under National Stock Number 5970-00-998-7657, 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 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-00-998-7657 |
| Primary Part Number | 11739087 |
| Item Name | Insulator,washer |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| Style Designator | ROUND, FLAT |
| Outside Diameter | 1.125 INCHES NOMINAL IN |
| Inside Diameter | 0.315 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN |
| Material | MICA OVERALL |
| Unable to Decode | UNABLE TO DECODE OR UNABLE TO DECODE |
| 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 |
|---|---|
| 11739087 | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| 10189676-6 | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 999528-7 | 7/2 Vendor item drawing reference U.S. Government activity |
| 10189676 | D/9 Drawing number reference only Us Army Aviation and Missile Command |
| A368-51 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5970-00-998-7657 is a Insulator,washer, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-00-998-7657 has 2 manufacturer part numbers on file: 11739087 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 10189676-6 (Us Army Aviation and Missile Command).
Key specifications for 11739087: Overall Height: 0.004 INCHES MINIMUM AND 0.007 INCHES MAXIMUM IN; Style Designator: ROUND, FLAT; Outside Diameter: 1.125 INCHES NOMINAL IN; Inside Diameter: 0.315 INCHES MINIMUM AND 0.320 INCHES MAXIMUM 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.