The Felt,mechanical,preformed, cataloged under National Stock Number 5330-00-311-2289, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Mc Donald a Y Mfg Co. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-311-2289 |
| Primary Part Number | 7310-217 |
| Item Name | Felt,mechanical,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Mc Donald a Y Mfg Co |
| Status | ACTIVE |
| Cross-Sectional Height | 0.125 INCHES NOMINAL IN |
| Cross-Sectional Width | 0.250 INCHES NOMINAL IN |
| Style Designator | CIRCULAR |
| Material Document and Classification | SAE F1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 4.375 INCHES NOMINAL IN |
| Aperture Diameter | 3.875 INCHES NOMINAL IN |
| Material | WOOL COMP 16R1 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 |
|---|---|
| 7310-217 PRIMARY | Mc Donald a Y Mfg Co (USA) |
| Reference | Meaning |
|---|---|
| 994H93 | 5/9 Secondary reference Mc Donald a Y Mfg Co |
NSN 5330-00-311-2289 is a Felt,mechanical,preformed, manufactured by Mc Donald a Y Mfg Co, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-311-2289 has 1 manufacturer part number on file: 7310-217 (Mc Donald a Y Mfg Co).
Key specifications for 7310-217: Cross-Sectional Height: 0.125 INCHES NOMINAL IN; Cross-Sectional Width: 0.250 INCHES NOMINAL IN; Style Designator: CIRCULAR; Material Document and Classification: SAE F1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 8 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.