The Keystone Assembly Plugged, cataloged under National Stock Number 4310-00-062-8574, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-00-062-8574 |
| Item Name | Keystone Assembly Plugged |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF:KEYSTONE ASSY;BALL,CRES.T440 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 842311 | C/1 Advisory reference — outside the item-of-supply concept Drs Environmental Systems Inc |
| 842311 | 3/9 Design control — primary reference Davey Compressor Co Div of Keco Industries Inc |
| 842311 | 5/9 Secondary reference Kidde-Fenwal, Llc |
NSN 4310-00-062-8574 is a Keystone Assembly Plugged, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4820-01-314-5584. Verify interchangeability with system specifications before substitution.
Key specifications for 4310-00-062-8574: General Characteristics Item Description: CONSISTS OF:KEYSTONE ASSY;BALL,CRES.T440. 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.