The Finger,retractor,valve Ball, cataloged under National Stock Number 4820-01-128-2317, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-128-2317 |
| Item Name | Finger,retractor,valve Ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL;O/A LENGTH 3.688;FIRST END 0.219 IN. BY 0.656 IN.;SECOND END 0.500 IN. BY 0.656 IN.;ONE HOLE 0.266 IN. DIA STRAIGHT THRU 0.656 IN. LG 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 |
|---|---|
| 845-4687720 | D/9 Drawing number reference only U.S. Government activity |
| 845-4558709 ITEM 43 | 5/2 Secondary reference U.S. Government activity |
| 2640-682-06 ITEM 43 | 3/2 Design control — primary reference U.S. Government activity |
| 2640-682-05 ITEM 43 | 3/2 Design control — primary reference U.S. Government activity |
| 845-4558709 | D/9 Drawing number reference only U.S. Government activity |
| 2640-682-06 | D/9 Drawing number reference only U.S. Government activity |
| 2640-682-05 | D/9 Drawing number reference only U.S. Government activity |
| 4687720-0043 | 3/2 Design control — primary reference U.S. Government activity |
| 845-4687720 ITEM 43 | 5/2 Secondary reference U.S. Government activity |
NSN 4820-01-128-2317 is a Finger,retractor,valve Ball, classified under FSC 4820, Valves, Nonpowered. Status: active.
5 possible matches (shared part number, not a government interchangeability claim): 4820-01-128-3011, 5365-01-133-6172, 4820-01-135-7613. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-01-128-2317: General Characteristics Item Description: STEEL;O/A LENGTH 3.688;FIRST END 0.219 IN. BY 0.656 IN.;SECOND END 0.500 IN. BY 0.656 IN.;ONE HOLE 0.266 IN. DIA STRAIGHT THRU 0.656 IN. LG 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.