The Gasket, cataloged under National Stock Number 5330-01-589-6856, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Ameridrives International Llc Dba Ameridrives International Llc. Government technical data includes 10 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-589-6856 |
| Primary Part Number | 40257-031 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Ameridrives International Llc Dba Ameridrives International Llc |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.0156 INCHES NOMINAL IN |
| Style Designator | CIRCULAR |
| Material Document and Classification | ARMSTRONG N-8090 OR S-8091 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Outside Diameter | 16.500 INCHES NOMINAL IN |
| Aperture Diameter | 12.560 INCHES NOMINAL IN |
| Bolt Hole Quantity | 16 |
| Bolt Circle Diameter | 14.440 INCHES NOMINAL IN |
| Material | CELLULOSE AND RUBBER BUTADIENE NITRILE OR RUBBER BUTADIENE-STYRENE CLASS SBR OVERALL |
| Hole Diameter | 0.780 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED 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 |
|---|---|
| 40257-031 PRIMARY | Ameridrives International Llc Dba Ameridrives International Llc (USA) |
| MA-DWG ITEM 4 | Ameridrives International Llc Dba Ameridrives International Llc (USA) |
NSN 5330-01-589-6856 is a Gasket, manufactured by Ameridrives International Llc Dba Ameridrives International Llc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-589-6856 has 2 manufacturer part numbers on file: 40257-031 (Ameridrives International Llc Dba Ameridrives International Llc), MA-DWG ITEM 4 (Ameridrives International Llc Dba Ameridrives International Llc).
Key specifications for 40257-031: Cross-Sectional Thickness: 0.0156 INCHES NOMINAL IN; Style Designator: CIRCULAR; Material Document and Classification: ARMSTRONG N-8090 OR S-8091 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION. 10 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.