The Ring,piston, cataloged under National Stock Number 4310-00-433-2980, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Thomas Industries Inc Pneumotive Div. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-00-433-2980 |
| Primary Part Number | C75630 |
| Item Name | Ring,piston |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Thomas Industries Inc Pneumotive Div |
| Status | ACTIVE |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE |
| Joint Style | VERTICAL JOINT |
| Radial Wall Thickness | 0.0180 INCHES MINIMUM AND 0.0220 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 1.770 INCHES IN |
| Material | STEEL 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 |
|---|---|
| C75630 PRIMARY | Thomas Industries Inc Pneumotive Div (USA) |
| Reference | Meaning |
|---|---|
| C75630 | 5/9 Secondary reference Fl Industries Inc Pneumotive Div |
| C1300S1401P | C/1 Advisory reference — outside the item-of-supply concept Itt Bell and Gosset-Hydronics a Unit of Itt Fluid Handling Div |
NSN 4310-00-433-2980 is a Ring,piston, manufactured by Thomas Industries Inc Pneumotive Div, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-00-433-2980 has 1 manufacturer part number on file: C75630 (Thomas Industries Inc Pneumotive Div).
Key specifications for C75630: Overall Width: 0.2440 INCHES MINIMUM AND 0.2490 INCHES MAXIMUM IN; Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE; Joint Style: VERTICAL JOINT; Radial Wall Thickness: 0.0180 INCHES MINIMUM AND 0.0220 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.