The Gasket, cataloged under National Stock Number 5330-01-577-5197, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Dixon Valve & Coupling Company, Llc Div Dixon Fire. Government technical data includes 7 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 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 | 5330-01-577-5197 |
| Primary Part Number | 300-G-BU |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Dixon Valve & Coupling Company, Llc Div Dixon Fire |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.2500 INCHES NOMINAL IN |
| Style Designator | CIRCULAR |
| Outside Diameter | 3.71875 INCHES NOMINAL IN |
| Aperture Diameter | 3.0 INCHES NOMINAL IN |
| Color | BLACK |
| Material | RUBBER SYNTHETIC OVERALL |
| Fabrication Method | SOLID |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 300-G-BU PRIMARY | Dixon Valve & Coupling Company, Llc Div Dixon Fire (USA) |
NSN 5330-01-577-5197 is a Gasket, manufactured by Dixon Valve & Coupling Company, Llc Div Dixon Fire, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-577-5197 has 1 manufacturer part number on file: 300-G-BU (Dixon Valve & Coupling Company, Llc Div Dixon Fire).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-675-2146. Verify interchangeability with system specifications before substitution.
Key specifications for 300-G-BU: Cross-Sectional Thickness: 0.2500 INCHES NOMINAL IN; Style Designator: CIRCULAR; Outside Diameter: 3.71875 INCHES NOMINAL IN; Aperture Diameter: 3.0 INCHES NOMINAL IN. 7 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.
NSN 5330-01-577-5197 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.