The Gasket, cataloged under National Stock Number 5330-01-020-5963, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Hermetic Seal Corporation Div Ametek Inc.. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-020-5963 |
| Primary Part Number | R26500-22-19 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Hermetic Seal Corporation Div Ametek Inc. |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.187 INCHES NOMINAL IN |
| Material Document and Classification | MIL-R-25988 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Outside Diameter | 1.095 INCHES NOMINAL IN |
| Aperture Diameter | 0.062 INCHES NOMINAL IN |
| Elongation Percentage | 125 MAXIMUM |
| Bolt Hole Quantity | 12 |
| Material | RUBBER FLUOROSILICONE CLASS FQ OVERALL |
| Hole Diameter | 0.062 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 |
|---|---|
| R26500-22-19 PRIMARY | Hermetic Seal Corporation Div Ametek Inc. (USA) |
| Reference | Meaning |
|---|---|
| 184859 | 5/9 Secondary reference Honeywell International Inc Div Aerospace-South Bend (bendix Dr) |
NSN 5330-01-020-5963 is a Gasket, manufactured by Hermetic Seal Corporation Div Ametek Inc., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-020-5963 has 1 manufacturer part number on file: R26500-22-19 (Hermetic Seal Corporation Div Ametek Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 5315-01-226-9319, 2040-01-574-4165. Verify interchangeability with system specifications before substitution.
Key specifications for R26500-22-19: Cross-Sectional Thickness: 0.187 INCHES NOMINAL IN; Material Document and Classification: MIL-R-25988 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION; Outside Diameter: 1.095 INCHES NOMINAL IN. 9 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.