The Test Fixture,reducer Valve, cataloged under National Stock Number 4820-01-133-4968, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-133-4968 |
| Item Name | Test Fixture,reducer Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| General Characteristics Item Description | 7.000 IN. OD; WITH FOUR 5/16 IN. 18 UNC THD SIZE HOLES EQUALLY SPACED ON TOP AND TWO 1-7/8 IN. 12 UN THD SIZE HOLES EQUALLY SPACED ON PERIPHERY; ONE HOLE 0.250 IN. DIA BY 1.000 IN. DEEP LOCATED ON TOP IN |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| S12599 | D/9 Drawing number reference only U.S. Government activity |
| TF1152 | 5/9 Secondary reference U.S. Government activity |
| 4891152 | 3/2 Design control — primary reference U.S. Government activity |
| S12599 SHEET 18 | 5/9 Secondary reference U.S. Government activity |
| S12595 PART TF1152 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-133-4968 is a Test Fixture,reducer Valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-133-4968: General Characteristics Item Description: 7.000 IN. OD; WITH FOUR 5/16 IN. 18 UNC THD SIZE HOLES EQUALLY SPACED ON TOP AND TWO 1-7/8 IN. 12 UN THD SIZE HOLES EQUALLY SPACED ON PERIPHERY; ONE HOLE 0.250 IN. DIA BY 1.000 IN. DEEP LOCATED ON TOP IN; Criticality Code Justification: FEAT; Special Features: WEAPON SYSTEM ESSENTIAL; End Item Identification: KIDD CLASS DDG, SPRUANCE CLASS DD (963), WASP CLASS LHD, TICONDEROGA CLASS CG (47).. 2 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.