The Flange,gland,valve, cataloged under National Stock Number 4820-01-485-6872, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-485-6872 |
| Item Name | Flange,gland,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flange Shape | ROUND |
| Material Document and Classification | QQ-C-465 FED SPEC 1ST MATERIAL RESPONSE AND MIL-B24059 FED SPEC 2ND MATERIAL RESPONSE |
| Bolt Hole Nominal Diameter | 0.005 INCHES IN |
| Bolt Hole Quantity | 12 |
| Flange Diameter | 5.250 INCHES IN |
| Material | COPPER ALLOY |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY CRITICAL MATERIAL |
| 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 |
|---|---|
| 5489224 | D/9 Drawing number reference only Naval Sea Systems Command |
| 5489227-1 | 5/1 Secondary reference Naval Sea Systems Command |
| 5489227 | 5/1 Secondary reference Naval Sea Systems Command |
| 5489224 ITEM NO. 8 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 4820-01-485-6872 is a Flange,gland,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-485-8290, 4820-01-684-3305. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-01-485-6872: Flange Shape: ROUND; Material Document and Classification: QQ-C-465 FED SPEC 1ST MATERIAL RESPONSE AND MIL-B24059 FED SPEC 2ND MATERIAL RESPONSE; Bolt Hole Nominal Diameter: 0.005 INCHES IN; Bolt Hole Quantity: 12. 7 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.