The Plug,expansion, cataloged under National Stock Number 5340-00-058-7964, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Dresser Industries Inc Leroi Div. Government technical data includes 7 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5340-00-058-7964 |
| Primary Part Number | 019-40 |
| Item Name | Plug,expansion |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Dresser Industries Inc Leroi Div |
| Status | ACTIVE |
| Radius | 5.000 INCHES NOMINAL IN |
| Outside Diameter | 2.995 INCHES MINIMUM AND 3.005 INCHES MAXIMUM IN |
| Style Designator | CONCAVE |
| Material Document and Classification | QQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-700 FED SPEC SINGLE MATERIAL RESPONSE |
| Material Thickness | 0.134 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OR ZINC |
| Material | STEEL |
| 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 |
|---|---|
| 019-40 PRIMARY | Dresser Industries Inc Leroi Div (USA) |
| Reference | Meaning |
|---|---|
| 172604 | 5/9 Secondary reference U.S. Government activity |
| 172604 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
| D1355-29 | 5/9 Secondary reference Rivinius Inc Littleford Machinery Div |
| 1877-2002 | 5/9 Secondary reference U.S. Government activity |
| 01877-2002 | 5/9 Secondary reference U.S. Government activity |
NSN 5340-00-058-7964 is a Plug,expansion, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-058-7964 has 1 manufacturer part number on file: 019-40 (Dresser Industries Inc Leroi Div).
1 possible match (shared part number, not a government interchangeability claim): 5985-01-608-9978. Verify interchangeability with system specifications before substitution.
Key specifications for 019-40: Radius: 5.000 INCHES NOMINAL IN; Outside Diameter: 2.995 INCHES MINIMUM AND 3.005 INCHES MAXIMUM IN; Style Designator: CONCAVE; Material Document and Classification: QQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-700 FED SPEC SINGLE MATERIAL RESPONSE. 7 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.