The Packing Assembly, cataloged under National Stock Number 5330-01-040-4803, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-040-4803 |
| Primary Part Number | 803-4384536-81B-18 |
| Item Name | Packing Assembly |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Intermediate Ring Quantity | 1 |
| Special Test Features | SPECIAL QUALITY CONTROL TESTING |
| Outside Diameter | 1.021 INCHES NOMINAL IN |
| Criticality Code Justification | SPCL |
| Cross-Sectional Shape Style | SQUARE/RECTANGULAR BOTTOM RING |
| Cross-Sectional Shape Style | SQUARE/RECTANGULAR TOP RING |
| Cross-Sectional Shape Style | SQUARE/RECTANGULAR INTERMEDIATE RING |
| Inside Diameter | 0.593 INCHES NOMINAL IN |
| Height | 1.032 INCHES NOMINAL IN |
| Material | ASBESTOS AND PLASTIC POLYTETRAFLUOROETHYLENE BOTTOM RING |
| Material | ASBESTOS AND PLASTIC POLYTETRAFLUOROETHYLENE INTERMEDIATE RING |
| Material | ASBESTOS AND PLASTIC POLYTETRAFLUOROETHYLENE TOP RING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 803-4384536-81B-18 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 803-4384536-8XX X-18 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 803-4384536-8XX -18 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5330-01-040-4803 is a Packing Assembly, manufactured by Naval Sea Systems Command, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-040-4803 has 1 manufacturer part number on file: 803-4384536-81B-18 (Naval Sea Systems Command).
Key specifications for 803-4384536-81B-18: Intermediate Ring Quantity: 1; Special Test Features: SPECIAL QUALITY CONTROL TESTING; Outside Diameter: 1.021 INCHES NOMINAL IN; Criticality Code Justification: SPCL. 12 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). 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.