The Ring,piston, cataloged under National Stock Number 4310-01-327-4497, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Waltco Truck Equipment Co Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4310-01-327-4497 |
| Primary Part Number | 3812 |
| Item Name | Ring,piston |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Waltco Truck Equipment Co Inc |
| Status | ACTIVE |
| Material | PLASTIC 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 |
|---|---|
| 3812 PRIMARY | Waltco Truck Equipment Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 21170-950G | D/9 Drawing number reference only Waltco Truck Equipment Co Inc |
NSN 4310-01-327-4497 is a Ring,piston, manufactured by Waltco Truck Equipment Co Inc, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-327-4497 has 1 manufacturer part number on file: 3812 (Waltco Truck Equipment Co Inc).
Key specifications for 3812: Overall Width: 0.5000 INCHES NOMINAL IN; Special Features: 2.000 IN.O/D,0.125 IN.THICK IN; End Item Identification: 3830-01-278-3519; Material: PLASTIC OVERALL. 1 specification is 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.