The Ring,piston, cataloged under National Stock Number 4310-00-720-4966, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-00-720-4966 |
| Primary Part Number | 5000S4902C841397REVBPC3 |
| Item Name | Ring,piston |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, THREE PIECE, STRAIGHT FACE |
| Joint Style | DIAGONAL JOINT |
| Radial Wall Thickness | 0.1240 INCHES MINIMUM AND 0.1440 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 2.500 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 |
| Part Number | Manufacturer |
|---|---|
| 5000S4902C841397REVBPC3 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 5000S4902C841397REVBPC3 | 5/9 Secondary reference U.S. Government activity |
NSN 4310-00-720-4966 is a Ring,piston, manufactured by Naval Sea Systems Command, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-00-720-4966 has 1 manufacturer part number on file: 5000S4902C841397REVBPC3 (Naval Sea Systems Command).
Key specifications for 5000S4902C841397REVBPC3: Overall Width: 0.2450 INCHES MINIMUM AND 0.2460 INCHES MAXIMUM IN; Cross-Sectional Shape Style: PLAIN RECTANGULAR, THREE PIECE, STRAIGHT FACE; Joint Style: DIAGONAL JOINT; Radial Wall Thickness: 0.1240 INCHES MINIMUM AND 0.1440 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.