The Ring,piston, cataloged under National Stock Number 4310-01-046-5585, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is O. C. Keckley Company. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-01-046-5585 |
| Primary Part Number | 21752A |
| Item Name | Ring,piston |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | O. C. Keckley Company |
| Status | ACTIVE |
| Material | COPPER ALLOY 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 |
|---|---|
| 21752A PRIMARY | O. C. Keckley Company (USA) |
| Reference | Meaning |
|---|---|
| AL67068 | D/9 Drawing number reference only O. C. Keckley Company |
NSN 4310-01-046-5585 is a Ring,piston, manufactured by O. C. Keckley Company, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-046-5585 has 1 manufacturer part number on file: 21752A (O. C. Keckley Company).
3 possible matches (shared part number, not a government interchangeability claim): 3040-01-233-0803, 4820-01-407-2967, 4820-01-407-2969. Verify interchangeability with system specifications before substitution.
Key specifications for 21752A: Material: COPPER ALLOY 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.