The Gasket, cataloged under National Stock Number 5330-01-111-9284, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Am General Llc. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-111-9284 |
| Primary Part Number | MAI28-21145 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Am General Llc |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.082 INCHES NOMINAL IN |
| Outside Diameter | 4.220 INCHES NOMINAL IN |
| Aperture Diameter | 3.845 INCHES NOMINAL IN |
| 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 |
|---|---|
| MAI28-21145 PRIMARY | Am General Llc (USA) |
| Reference | Meaning |
|---|---|
| 51-9115-01 | 5/2 Secondary reference U.S. Government activity |
NSN 5330-01-111-9284 is a Gasket, manufactured by Am General Llc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-111-9284 has 1 manufacturer part number on file: MAI28-21145 (Am General Llc).
1 possible match (shared part number, not a government interchangeability claim): 4240-01-506-6667. Verify interchangeability with system specifications before substitution.
Key specifications for MAI28-21145: Cross-Sectional Thickness: 0.082 INCHES NOMINAL IN; Outside Diameter: 4.220 INCHES NOMINAL IN; Aperture Diameter: 3.845 INCHES NOMINAL IN. 3 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.