The Retainer,seal, cataloged under National Stock Number 5330-01-326-3509, 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 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-326-3509 |
| Primary Part Number | 5816568 |
| Item Name | Retainer,seal |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Flange Thickness | 0.150 INCHES NOMINAL IN |
| Body Outside Diameter | 0.890 INCHES MINIMUM AND 0.895 INCHES MAXIMUM IN |
| Style Designator | FLANGED |
| Bolt Hole Diameter | 0.094 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Seal Seat Diameter | 0.675 INCHES NOMINAL IN |
| Aperture Diameter | 0.647 INCHES NOMINAL IN |
| Bolt Hole Quantity | 6 |
| Bolt Circle Diameter | 0.675 INCHES NOMINAL IN |
| Shortest Distance Between Body End and Mounting Flange | 0.210 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN |
| Mounting Flange Diameter | 1.750 INCHES NOMINAL IN |
| Material | STEEL COMP 347 OVERALL |
| Seal Seat Depth | 0.545 INCHES MINIMUM AND 0.555 INCHES MAXIMUM IN |
| Construction | ONE-PIECE |
| 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 |
|---|---|
| 5816568 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5330-01-326-3509 is a Retainer,seal, manufactured by Naval Sea Systems Command, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-326-3509 has 1 manufacturer part number on file: 5816568 (Naval Sea Systems Command).
Key specifications for 5816568: Overall Height: 0.720 INCHES MINIMUM AND 0.730 INCHES MAXIMUM IN; Flange Thickness: 0.150 INCHES NOMINAL IN; Body Outside Diameter: 0.890 INCHES MINIMUM AND 0.895 INCHES MAXIMUM IN; Style Designator: FLANGED. 14 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.