The Cylinder Head,compressor, cataloged under National Stock Number 4310-00-004-8264, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 2 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-00-004-8264 |
| Primary Part Number | 8S4581 |
| Item Name | Cylinder Head,compressor |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Cylinder Quantity | 2 |
| Material | IRON CAST |
| 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 |
|---|---|
| 8S4581 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 4310-00-004-8264 is a Cylinder Head,compressor, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-00-004-8264 has 1 manufacturer part number on file: 8S4581 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 8S4581: Special Features: 6.000 IN. L;4.250 IN. W;2.250 IN. H;INCLUDES 2 DISCHARGE VALVES AND 2 INLET PORTS;DESIGNED FOR TWO STAGE COMPRESSOR;8 BOLT HOLES 5/16 IN. DIA;5 DISCHARGE PORTS,1 FLANGED 7/8 IN. DIA;4 3/8-18 NPT RH PORTS,UNUSED PORTS ARE TO BE PLUGGED IN; Cylinder Quantity: 2; Material: IRON CAST. 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.