The Ring,piston, cataloged under National Stock Number 4310-01-571-2029, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-01-571-2029 |
| Primary Part Number | 18-C1147-8R1 OXYGEN CLEANCP |
| Item Name | Ring,piston |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 18-C1147-8R1 OXYGEN CLEANCP | Naval Inventory Control Point Mechanicsburg (USA) |
| B8505 ITEM 3 OXYGEN CLEANCP | Naval Inventory Control Point Mechanicsburg (USA) |
| XM18-C-1147-8R1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| B8505 ITEM 3 OXYGEN CLEAN | 5/1 Secondary reference Rix Industries |
| 18-C1147-8R1 OXYGEN CLEAN | 3/1 Design control — primary reference Rix Industries |
NSN 4310-01-571-2029 is a Ring,piston, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-571-2029 has 3 manufacturer part numbers on file: 18-C1147-8R1 OXYGEN CLEANCP (Naval Inventory Control Point Mechanicsburg), B8505 ITEM 3 OXYGEN CLEANCP (Naval Inventory Control Point Mechanicsburg), XM18-C-1147-8R1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 18-C1147-8R1 OXYGEN CLEANCP: Criticality Code Justification: ZZZY; Special Features: COMPRESSOR. SSR NAME IS RIDER RING; Part Name Assigned by Controlling Agency: RIDER RING 1 INCH, 1 INCH C = .248 RULON 945 IN; End Item Identification: BOOST COMPRESSOR ASSEMBLY. 2 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.