The Seal Ring,metal, cataloged under National Stock Number 5330-00-965-5330, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Krobach Mfg. Corp. Dba Krobach Manufacturing Corp. Government technical data includes 6 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-965-5330 |
| Primary Part Number | 502C918A01 |
| Item Name | Seal Ring,metal |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Krobach Mfg. Corp. Dba Krobach Manufacturing Corp |
| Status | ACTIVE |
| Material Document and Classification | MIL-C-15345 ALLOY 7 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Joint Style | VERTICAL JOINT |
| Inside Diameter | 3.250 INCHES NOMINAL IN |
| Radial Wall Thickness | 1.7500 INCHES NOMINAL IN |
| Ring Style | CONTRACTING CONCENTRIC |
| Material | COPPER ALLOY AND NICKEL 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 |
|---|---|
| 502C918A01 | Krobach Mfg. Corp. Dba Krobach Manufacturing Corp (USA) |
| Reference | Meaning |
|---|---|
| 715J131PC4 | 5/9 Secondary reference U.S. Government activity |
| 715J131PC04 | 5/9 Secondary reference Westinghouse Electric Corp |
| 715J131PC04 | 5/9 Secondary reference U.S. Government activity |
| 502C918A01 | 3/2 Design control — primary reference U.S. Government activity |
| 502C918PC01 | 5/9 Secondary reference U.S. Government activity |
| 502C918PC01 | 5/9 Secondary reference Westinghouse Electric Corp |
| 502C918PC01 | 5/9 Secondary reference Ships Parts Inc |
| 502C918AO1 | 5/9 Secondary reference Ships Parts Inc |
NSN 5330-00-965-5330 is a Seal Ring,metal, manufactured by Krobach Mfg. Corp. Dba Krobach Manufacturing Corp, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-965-5330 has 1 manufacturer part number on file: 502C918A01 (Krobach Mfg. Corp. Dba Krobach Manufacturing Corp).
Key specifications for 502C918A01: Overall Width: 1.4690 INCHES NOMINAL IN; Material Document and Classification: MIL-C-15345 ALLOY 7 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Joint Style: VERTICAL JOINT; Inside Diameter: 3.250 INCHES NOMINAL IN. 6 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.