The Gasket, cataloged under National Stock Number 5330-00-034-4978, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Brinkley Technology Group Llc Dba Hercules Manufacturing. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-034-4978 |
| Primary Part Number | 255213-00 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Brinkley Technology Group Llc Dba Hercules Manufacturing |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.250 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Aperture Width | 19.750 INCHES NOMINAL IN |
| Aperture Length | 4.375 INCHES NOMINAL IN |
| Material | CORK 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 |
|---|---|
| 255213-00 PRIMARY | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| 255213C | 5/9 Secondary reference Hercules Engine Co Inc |
| 255213-00 | 5/9 Secondary reference Hercules Engine Co Inc |
NSN 5330-00-034-4978 is a Gasket, manufactured by Brinkley Technology Group Llc Dba Hercules Manufacturing, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-034-4978 has 1 manufacturer part number on file: 255213-00 (Brinkley Technology Group Llc Dba Hercules Manufacturing).
Key specifications for 255213-00: Cross-Sectional Thickness: 0.250 INCHES NOMINAL IN; Overall Length: 20.500 INCHES NOMINAL IN; Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION; Overall Width: 5.125 INCHES NOMINAL IN. 5 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.