The Felt,mechanical,preformed, cataloged under National Stock Number 5330-00-428-4331, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is United Technologies Corp Electro Systems Inc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-428-4331 |
| Primary Part Number | WA1166 |
| Item Name | Felt,mechanical,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | United Technologies Corp Electro Systems Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.125 INCHES NOMINAL IN |
| Cross-Sectional Width | 0.2655 INCHES NOMINAL IN |
| Style Designator | CIRCULAR |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 1.625 INCHES NOMINAL IN |
| Aperture Diameter | 1.094 INCHES NOMINAL IN |
| Material | WOOL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5330-00-428-4331 is a Felt,mechanical,preformed, manufactured by United Technologies Corp Electro Systems Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-428-4331 has 2 manufacturer part numbers on file: 8F2084 (Caterpillar Inc Div Caterpillar Defense), WA1166 (United Technologies Corp Electro Systems Inc).
Key specifications for WA1166: Cross-Sectional Height: 0.125 INCHES NOMINAL IN; Cross-Sectional Width: 0.2655 INCHES NOMINAL IN; Style Designator: CIRCULAR; Cross-Sectional Shape Style: RECTANGULAR. 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.