The Seal,plain, cataloged under National Stock Number 5330-01-263-8518, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-263-8518 |
| Primary Part Number | 999F0721 PIECE 79 |
| Item Name | Seal,plain |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Circor Naval Solutions Llc Dba Warren Pumps |
| Status | ACTIVE |
| Seal Width | 0.500 INCHES NOMINAL IN |
| Housing Bore Diameter | 3.375 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | SINGLE LIP |
| Accommodated Shaft Diameter | 2.375 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT |
| Material | RUBBER HEEL |
| Material | STEEL CORROSION RESISTING SPRING |
| Construction | SOLID |
| 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 |
|---|---|
| 999F0721 PIECE 79 PRIMARY | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
| LUP9409H3L5 | Parker-Hannifin Corporation Dba Pneutronics Div Engineered Polymer Systems (USA) |
| Reference | Meaning |
|---|---|
| LUP9409 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5330-01-263-8518 is a Seal,plain, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-263-8518 has 2 manufacturer part numbers on file: 999F0721 PIECE 79 (Circor Naval Solutions Llc Dba Warren Pumps), LUP9409H3L5 (Parker-Hannifin Corporation Dba Pneutronics Div Engineered Polymer Systems).
Key specifications for 999F0721 PIECE 79: Seal Width: 0.500 INCHES NOMINAL IN; Housing Bore Diameter: 3.375 INCHES NOMINAL IN; Cross-Sectional Shape Style: SINGLE LIP; Accommodated Shaft Diameter: 2.375 INCHES NOMINAL IN. 8 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.