The Ring,wiper, cataloged under National Stock Number 5330-00-447-0102, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-447-0102 |
| Primary Part Number | 3T21491B14 |
| Item Name | Ring,wiper |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| FSC Application Data | PUMP,ROTARY |
| Outer Edge Thickness | 0.100 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Material Document and Classification | UNABLE TO DECODE |
| Cross-Sectional Shape Style | STRAIGHT FACE, DOUBLE SCRAPER |
| Outside Diameter | 2.470 INCHES NOMINAL IN |
| Features Provided | WEARING EDGES BEVELED |
| Material Thickness | 0.188 INCHES NOMINAL IN |
| Inside Diameter | 2.255 INCHES MINIMUM AND 2.257 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Surface Treatment | UNABLE TO DECODE |
| Material | UNABLE TO DECODE |
| 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 |
|---|---|
| 3F4903PC18 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| 3T21491B14 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| 3T21491B14 | Toolex, Inc Dba Toolex Inc (USA) |
| 3F4903PC18 | Toolex, Inc Dba Toolex Inc (USA) |
NSN 5330-00-447-0102 is a Ring,wiper, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-447-0102 has 4 manufacturer part numbers on file: 3F4903PC18 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 3T21491B14 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 3T21491B14 (Toolex, Inc Dba Toolex Inc), 3F4903PC18 (Toolex, Inc Dba Toolex Inc).
Key specifications for 3T21491B14: FSC Application Data: PUMP,ROTARY; Outer Edge Thickness: 0.100 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN; Material Document and Classification: UNABLE TO DECODE; Cross-Sectional Shape Style: STRAIGHT FACE, DOUBLE SCRAPER. 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.