The Seal Ring,metal, cataloged under National Stock Number 5330-00-490-1983, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Kaydon Ring & Seal Inc Dba Skf Precision Technologies. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-490-1983 |
| Primary Part Number | 54351 |
| Item Name | Seal Ring,metal |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Kaydon Ring & Seal Inc Dba Skf Precision Technologies |
| Status | ACTIVE |
| Material Document and Classification | KOPPERS K,PARCO LUBRIZED MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 3.054 INCHES MINIMUM AND 3.074 INCHES MAXIMUM IN |
| Joint Style | STEP JOINT |
| Radial Wall Thickness | 0.0590 INCHES MINIMUM AND 0.0690 INCHES MAXIMUM IN |
| Ring Style | EXPANDING CONCENTRIC |
| Material | IRON 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 |
|---|---|
| 54351 PRIMARY | Kaydon Ring & Seal Inc Dba Skf Precision Technologies (USA) |
| Reference | Meaning |
|---|---|
| 13218E4086 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 5330-00-490-1983 is a Seal Ring,metal, manufactured by Kaydon Ring & Seal Inc Dba Skf Precision Technologies, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-490-1983 has 1 manufacturer part number on file: 54351 (Kaydon Ring & Seal Inc Dba Skf Precision Technologies).
2 possible matches (shared part number, not a government interchangeability claim): 5935-00-825-5570, 2930-00-881-9174. Verify interchangeability with system specifications before substitution.
Key specifications for 54351: Overall Width: 0.1220 INCHES MINIMUM AND 0.1240 INCHES MAXIMUM IN; Material Document and Classification: KOPPERS K,PARCO LUBRIZED MFR REF SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 3.054 INCHES MINIMUM AND 3.074 INCHES MAXIMUM IN; Joint Style: STEP JOINT. 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.