The Gasket, cataloged under National Stock Number 5330-01-497-1250, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Derbyshire Machine & Tool Co. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5330-01-497-1250 |
| Primary Part Number | 99-D-145-10 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Derbyshire Machine & Tool Co |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.258 INCHES NOMINAL IN |
| Style Designator | CIRCULAR |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Outside Diameter | 2.751 INCHES NOMINAL IN |
| Aperture Diameter | 2.235 INCHES NOMINAL IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE AND RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM 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 |
|---|---|
| 99-D-145-10 PRIMARY | Derbyshire Machine & Tool Co (USA) |
| Reference | Meaning |
|---|---|
| 34170 | 5/9 Secondary reference Bal Seal Engineering Inc. |
NSN 5330-01-497-1250 is a Gasket, manufactured by Derbyshire Machine & Tool Co, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-497-1250 has 1 manufacturer part number on file: 99-D-145-10 (Derbyshire Machine & Tool Co).
Key specifications for 99-D-145-10: Cross-Sectional Thickness: 0.258 INCHES NOMINAL IN; Style Designator: CIRCULAR; Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION; Outside Diameter: 2.751 INCHES NOMINAL IN. 6 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.