The Ring,incator,valve Opening, cataloged under National Stock Number 4820-01-386-2182, 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1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-386-2182 |
| Item Name | Ring,incator,valve Opening |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY MIL-P-15024 TY H;ANODIZED;2.500 IN. OD;2.000 IN. ID;0.062 IN. THK;4 EQUALLY SPACED HOLES, 0.190 IN. DIA, ON A 2.250 IN. DBC 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 |
|---|---|
| 803-4385050 | D/9 Drawing number reference only U.S. Government activity |
| 803-4385050 PIECE 106 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-386-2182 is a Ring,incator,valve Opening, classified under FSC 4820, Valves, Nonpowered. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 4820-01-422-5108, 3120-01-550-8881, 5310-01-659-4539. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-01-386-2182: General Characteristics Item Description: ALUMINUM ALLOY MIL-P-15024 TY H;ANODIZED;2.500 IN. OD;2.000 IN. ID;0.062 IN. THK;4 EQUALLY SPACED HOLES, 0.190 IN. DIA, ON A 2.250 IN. DBC IN; Special Features: THE WORDS OPEN AND SHUT ARE TO BE ENGRAVED OR IN METAL PHOTO BLACK LETTERS. 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.