The Gasket, cataloged under National Stock Number 5330-00-481-0125, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Armstrong Pumps 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5330-00-481-0125 |
| Primary Part Number | 419323-000 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Armstrong Pumps Inc |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.015 INCHES NOMINAL IN |
| Style Designator | CIRCULAR |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Outside Diameter | 4.500 INCHES NOMINAL IN |
| Aperture Diameter | 3.250 INCHES NOMINAL IN |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 3.875 INCHES NOMINAL IN |
| Material | PAPER OVERALL |
| Hole Diameter | 0.406 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 |
|---|---|
| 419323-000 PRIMARY | Armstrong Pumps Inc (USA) |
| Reference | Meaning |
|---|---|
| 19323 | 5/9 Secondary reference Armstrong Pumps Inc |
NSN 5330-00-481-0125 is a Gasket, manufactured by Armstrong Pumps Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-481-0125 has 1 manufacturer part number on file: 419323-000 (Armstrong Pumps Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5950-01-253-5137, 2610-01-364-5044. Verify interchangeability with system specifications before substitution.
Key specifications for 419323-000: Cross-Sectional Thickness: 0.015 INCHES NOMINAL IN; Style Designator: CIRCULAR; Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION; Outside Diameter: 4.500 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.