The Ring Set,piston, cataloged under National Stock Number 4310-01-290-1933, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Atlas Copco Holyoke Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-01-290-1933 |
| Primary Part Number | KIT01093 |
| Item Name | Ring Set,piston |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Atlas Copco Holyoke Inc |
| Status | ACTIVE |
| Ring Set Component Parts | OIL RING,RNG00661,59379,1; OIL RING,RNG00658,59379,1; COMPRESSION RING,RNG00262,59379,2; OIL RING,RNG00693,59379,4; COMPRESSION RING,RNG00264,59379,4 |
| Piston Accommodation Quantity | 3 |
| Standard Bore Diameter | 4.500 INCHES AND 6.000 INCHES IN |
| 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 |
|---|---|
| KIT-1093 | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| KIT-1093 | Atlas Copco Holyoke Inc (USA) |
| KIT01093 PRIMARY | Atlas Copco Holyoke Inc (USA) |
| Reference | Meaning |
|---|---|
| KIT-1093 | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
| KIT-1093 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| KIT-1093 | 5/9 Secondary reference U.S. Government activity |
NSN 4310-01-290-1933 is a Ring Set,piston, manufactured by Atlas Copco Holyoke Inc, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-290-1933 has 3 manufacturer part numbers on file: KIT-1093 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), KIT-1093 (Atlas Copco Holyoke Inc), KIT01093 (Atlas Copco Holyoke Inc).
Key specifications for KIT01093: Ring Set Component Parts: OIL RING,RNG00661,59379,1; OIL RING,RNG00658,59379,1; COMPRESSION RING,RNG00262,59379,2; OIL RING,RNG00693,59379,4; COMPRESSION RING,RNG00264,59379,4; Piston Accommodation Quantity: 3; Standard Bore Diameter: 4.500 INCHES AND 6.000 INCHES IN. 3 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.