The Cover,automatic Valve, cataloged under National Stock Number 4310-00-424-5093, 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1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-00-424-5093 |
| Item Name | Cover,automatic Valve |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL; 5.000 IN. SQ FLANGE,W/4 MTG HOLES 0.555 IN. DIA,EVENLY SPACED ON A 5.125 IN. DIA BOLT CIRCLE; HAS STEPPED HUB ON ONE SIDE OF FLANGE,1ST STEP IS 4.760 IN. DIA,0.055 IN. LG; 2ND STEP IS 4.360 IN. DIA,0.497 IN. LG; 3RD STEP IS 3.985 IN. DIA,0.195 IN. LG; HUB IS RECESSED 3.534 IN. DIA,0.880 IN. DP; ALSO HAS 3 THD HOLES,0.500-13 UNC,EVENLY SPACED ON A 3.235 IN. DIA BOLT CIRCLE IN |
| 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 |
|---|---|
| 1-272038 | 3/9 Design control — primary reference U.S. Government activity |
| 1-272038 | 5/9 Secondary reference Chicago Pneumatic Tool Co |
NSN 4310-00-424-5093 is a Cover,automatic Valve, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
Key specifications for 4310-00-424-5093: General Characteristics Item Description: STEEL; 5.000 IN. SQ FLANGE,W/4 MTG HOLES 0.555 IN. DIA,EVENLY SPACED ON A 5.125 IN. DIA BOLT CIRCLE; HAS STEPPED HUB ON ONE SIDE OF FLANGE,1ST STEP IS 4.760 IN. DIA,0.055 IN. LG; 2ND STEP IS 4.360 IN. DIA,0.497 IN. LG; 3RD STEP IS 3.985 IN. DIA,0.195 IN. LG; HUB IS RECESSED 3.534 IN. DIA,0.880 IN. DP; ALSO HAS 3 THD HOLES,0.500-13 UNC,EVENLY SPACED ON A 3.235 IN. DIA BOLT CIRCLE IN. 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.