The Gasket, cataloged under National Stock Number 5330-00-623-0381, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Rulyn Inc. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-00-623-0381 |
| Primary Part Number | A27415 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Rulyn Inc |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.031 INCHES NOMINAL IN |
| Style Designator | CIRCULAR |
| Material Document and Classification | AP AND G 792 FSCM 13440 MFR REF ALL MATERIAL RESPONSES OVERALL |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Outside Diameter | 4.375 INCHES NOMINAL IN |
| Aperture Diameter | 3.562 INCHES NOMINAL IN |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 4.000 INCHES NOMINAL IN |
| Material | CORK AND RUBBER SYNTHETIC OVERALL |
| Hole Diameter | 0.281 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 |
|---|---|
| A27415 PRIMARY | Rulyn Inc (USA) |
| Reference | Meaning |
|---|---|
| A27415 | 5/9 Secondary reference Emerson Process Management Valve Automation, Inc. |
NSN 5330-00-623-0381 is a Gasket, manufactured by Rulyn Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-623-0381 has 1 manufacturer part number on file: A27415 (Rulyn Inc).
1 possible match (shared part number, not a government interchangeability claim): 3120-00-948-7305. Verify interchangeability with system specifications before substitution.
Key specifications for A27415: Cross-Sectional Thickness: 0.031 INCHES NOMINAL IN; Style Designator: CIRCULAR; Material Document and Classification: AP AND G 792 FSCM 13440 MFR REF ALL MATERIAL RESPONSES 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.