The Insulator,washer, cataloged under National Stock Number 5970-00-954-6583, 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 Atlantic Inertial Systems Inc Div Cheshire Division. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5970-00-954-6583 |
| Primary Part Number | 16438 |
| Item Name | Insulator,washer |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Atlantic Inertial Systems Inc Div Cheshire Division |
| Status | ACTIVE |
| Material Type | NATURAL AND UNBLEACHED AND KRAFT PAPER WOOD PULP PAPER COMPOSITION FOUR |
| Material Type | NATURAL AND UNBLEACHED AND PRESSBOARD WOOD PULP PAPER COMPOSITION FIVE |
| Material Type | NATURAL AND UNBLEACHED AND PRESS PAPER WOOD PULP PAPER COMPOSITION THREE |
| Material Type | NATURAL AND UNBLEACHED AND ELEPHANTIDE WOOD PULP PAPER COMPOSITION TWO |
| Material Type | NATURAL AND UNBLEACHED AND SULFATE PAPER WOOD PULP PAPER COMPOSITION ONE |
| Material Form | FILM OR TAPE PLASTIC POLYIMIDE |
| Material Form | CLOTH OVERALL |
| Style Designator | ROUND, FLAT |
| Outside Diameter | 1.438 INCHES NOMINAL IN |
| Inside Diameter | 0.688 INCHES NOMINAL IN |
| Material | GLASS-CERAMIC OR MICA OR COTTON OR CERAMIC OR SILK OR FIBERGLASS OR GLASS OR PLASTIC POLYVINYL CHLORIDE (PVC) OR PLASTIC POLYIMIDE OR PLASTIC PHENOL FORMALDEHYDE (PMO) OR PULP, PAPER WOOD OR PLASTIC POLYURETHANE RESIN OR PLASTIC POLYESTER AND RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM OR RUBBER OR RESIN UNSATURATED POLYESTER (UPR) OR THERMOPLASTIC POLYURETHANE OR ORGANIC VARNISH 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 |
|---|---|
| 16438 | Atlantic Inertial Systems Inc Div Cheshire Division (USA) |
| Reference | Meaning |
|---|---|
| 16438 | 5/9 Secondary reference Fl Aerospace Corp Janitrol Aero Div/general Design |
| 16438 | 3/9 Design control — primary reference Atlantic Inertial Systems Inc |
NSN 5970-00-954-6583 is a Insulator,washer, manufactured by Atlantic Inertial Systems Inc Div Cheshire Division, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-00-954-6583 has 1 manufacturer part number on file: 16438 (Atlantic Inertial Systems Inc Div Cheshire Division).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-591-4845. Verify interchangeability with system specifications before substitution.
Key specifications for 16438: Overall Height: 0.025 INCHES NOMINAL IN; Material Type: NATURAL AND UNBLEACHED AND KRAFT PAPER WOOD PULP PAPER COMPOSITION FOUR; Material Type: NATURAL AND UNBLEACHED AND PRESSBOARD WOOD PULP PAPER COMPOSITION FIVE; Material Type: NATURAL AND UNBLEACHED AND PRESS PAPER WOOD PULP PAPER COMPOSITION THREE. 11 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.