The Insulator,standoff, cataloged under National Stock Number 5970-00-980-7846, 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 Roechling Industrial Cleveland, Lp. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-00-980-7846 |
| Primary Part Number | 1603-1B |
| Item Name | Insulator,standoff |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Roechling Industrial Cleveland, Lp |
| Status | ACTIVE |
| Outside Diameter | 1.750 INCHES NOMINAL IN |
| Material | PLASTIC POLYESTER 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 |
|---|---|
| 1603-1B PRIMARY | Roechling Industrial Cleveland, Lp (USA) |
| 411515 | Avtron Aerospace Inc (USA) |
| R2137-A4 | Mar-Bal, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 426-0503-9001 | 5/1 Secondary reference Honeywell International Inc. Div Aerospace - Torrance |
| 411505 | 3/1 Design control — primary reference Avtron Aerospace Inc |
NSN 5970-00-980-7846 is a Insulator,standoff, manufactured by Roechling Industrial Cleveland, Lp, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-00-980-7846 has 3 manufacturer part numbers on file: 1603-1B (Roechling Industrial Cleveland, Lp), 411515 (Avtron Aerospace Inc), R2137-A4 (Mar-Bal, Inc.).
Key specifications for 1603-1B: Overall Height: 1.375 INCHES NOMINAL IN; Outside Diameter: 1.750 INCHES NOMINAL IN; Material: PLASTIC POLYESTER OVERALL. 2 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.