The Ring,wiper, cataloged under National Stock Number 5330-00-231-7374, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Porta Drill Inc. 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. 3 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 | 5330-00-231-7374 |
| Primary Part Number | 19-189 |
| Item Name | Ring,wiper |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Porta Drill Inc |
| Status | ACTIVE |
| Outer Edge Thickness | 0.375 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE |
| Outside Diameter | 4.690 INCHES NOMINAL IN |
| Joint Style | DIAGONAL JOINT |
| Material Thickness | 0.375 INCHES NOMINAL IN |
| Inside Diameter | 3.940 INCHES NOMINAL IN |
| Ring Style | CONCENTRIC |
| 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 |
|---|---|
| 19-189 PRIMARY | Porta Drill Inc (USA) |
NSN 5330-00-231-7374 is a Ring,wiper, manufactured by Porta Drill Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-231-7374 has 1 manufacturer part number on file: 19-189 (Porta Drill Inc).
3 possible matches (shared part number, not a government interchangeability claim): 4730-00-392-5316, 3020-00-714-8547, 6550-01-358-5324. Verify interchangeability with system specifications before substitution.
Key specifications for 19-189: Outer Edge Thickness: 0.375 INCHES NOMINAL IN; Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE; Outside Diameter: 4.690 INCHES NOMINAL IN; Joint Style: DIAGONAL JOINT. 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.