The Ring,piston, cataloged under National Stock Number 2815-00-273-0508, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 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 | 2815-00-273-0508 |
| Primary Part Number | S483-8 |
| Item Name | Ring,piston |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Kaydon Ring & Seal Inc Dba Skf Precision Technologies |
| Status | ACTIVE |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE |
| Joint Style | VERTICAL JOINT |
| Radial Wall Thickness | 0.0600 INCHES MINIMUM AND 0.0700 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 1.500 INCHES IN |
| Material | IRON OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 2815-00-273-0508 is a Ring,piston, manufactured by Kaydon Ring & Seal Inc Dba Skf Precision Technologies, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-00-273-0508 has 2 manufacturer part numbers on file: S483-8 (Kaydon Ring & Seal Inc Dba Skf Precision Technologies), B-3061 (Cooper Machinery Services Llc).
3 possible matches (shared part number, not a government interchangeability claim): 3655-00-419-0637, 5950-00-827-7186, 2520-00-940-7973. Verify interchangeability with system specifications before substitution.
Key specifications for S483-8: Overall Width: 0.1230 INCHES MINIMUM AND 0.1235 INCHES MAXIMUM IN; Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE; Joint Style: VERTICAL JOINT; Radial Wall Thickness: 0.0600 INCHES MINIMUM AND 0.0700 INCHES MAXIMUM IN. 6 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.