The Seal,plain Encased, cataloged under National Stock Number 5330-00-291-2332, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Brinkley Technology Group Llc Dba Hercules Manufacturing. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-291-2332 |
| Primary Part Number | 321593 |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Brinkley Technology Group Llc Dba Hercules Manufacturing |
| Status | ACTIVE |
| Seal Width | 0.375 INCHES NOMINAL IN |
| Sealing Element Style | ANGULAR |
| Housing Bore Diameter | 1.375 INCHES NOMINAL IN |
| Accommodated Shaft Maximum Rated Speed | 1000 FEET PER MINUTE FT |
| Case Style | SQUARE |
| Accommodated Shaft Diameter | 0.625 INCHES NOMINAL IN |
| Material | STEEL CASE |
| Material | RUBBER SYNTHETIC SEALING ELEMENT |
| 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 |
|---|---|
| 6321593 | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| 321593 PRIMARY | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| 51X92 | Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA) |
| Reference | Meaning |
|---|---|
| 321593 | 5/9 Secondary reference Acf-Brill Motors Co |
| 6321593 | 5/9 Secondary reference Hercules Engine Co Inc |
| 321593 | 5/9 Secondary reference Hercules Engine Co Inc |
NSN 5330-00-291-2332 is a Seal,plain Encased, manufactured by Brinkley Technology Group Llc Dba Hercules Manufacturing, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-291-2332 has 3 manufacturer part numbers on file: 6321593 (Brinkley Technology Group Llc Dba Hercules Manufacturing), 321593 (Brinkley Technology Group Llc Dba Hercules Manufacturing), 51X92 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc).
1 possible match (shared part number, not a government interchangeability claim): 1660-00-730-5725. Verify interchangeability with system specifications before substitution.
Key specifications for 321593: Seal Width: 0.375 INCHES NOMINAL IN; Sealing Element Style: ANGULAR; Housing Bore Diameter: 1.375 INCHES NOMINAL IN; Accommodated Shaft Maximum Rated Speed: 1000 FEET PER MINUTE FT. 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.