The Insulator,washer, cataloged under National Stock Number 5970-00-291-4133, 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 Dresser Industries Inc Leroi Div. 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-00-291-4133 |
| Primary Part Number | 117303 |
| Item Name | Insulator,washer |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Dresser Industries Inc Leroi Div |
| 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 | 0.812 INCHES NOMINAL IN |
| Inside Diameter | 0.469 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 |
|---|---|
| 117303 | Dresser Industries Inc Leroi Div (USA) |
| Reference | Meaning |
|---|---|
| T001129423 | 3/9 Design control — primary reference U.S. Government activity |
| 3170131 | 5/2 Secondary reference U.S. Government activity |
| 1-129423 | 5/9 Secondary reference U.S. Government activity |
| MB134 | 5/9 Secondary reference U.S. Government activity |
| 3230131PC8 | 5/2 Secondary reference U.S. Government activity |
| N3508 | 5/9 Secondary reference U.S. Government activity |
| MB134 | 5/9 Secondary reference Tokheim Corp Small Pumps Div |
| N3508 | 5/9 Secondary reference Tokheim Corp Small Pumps Div |
NSN 5970-00-291-4133 is a Insulator,washer, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-00-291-4133 has 1 manufacturer part number on file: 117303 (Dresser Industries Inc Leroi Div).
4 possible matches (shared part number, not a government interchangeability claim): 5305-00-579-5843, 3020-00-593-4827, 5360-01-186-1129. Verify interchangeability with system specifications before substitution.
Key specifications for 117303: Overall Height: 0.062 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: 0.812 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.