The Sleeve,seal,coupler, cataloged under National Stock Number 5330-01-444-6719, 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 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-444-6719 |
| Primary Part Number | 6409940 |
| Item Name | Sleeve,seal,coupler |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Cross-Sectional Shape Style | SPHERICAL |
| Cross Section Outside Diameter | 1.720 INCHES MINIMUM AND 1.780 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL |
| 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 |
|---|---|
| 6409940 PRIMARY | Naval Sea Systems Command (USA) |
| D4200000029-4 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 904-6409940 FIN | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 6409940 FIND 4 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 211074462 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 5330-01-444-6719 is a Sleeve,seal,coupler, manufactured by Naval Sea Systems Command, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-444-6719 has 2 manufacturer part numbers on file: 6409940 (Naval Sea Systems Command), D4200000029-4 (Naval Sea Systems Command).
Key specifications for 6409940: Cross-Sectional Shape Style: SPHERICAL; Cross Section Outside Diameter: 1.720 INCHES MINIMUM AND 1.780 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL. 3 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.