The Flange,gland,valve, cataloged under National Stock Number 4820-01-641-8467, 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2 specifications, cited from the U.S. Government catalog. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-641-8467 |
| Item Name | Flange,gland,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PRODURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Reference | Meaning |
|---|---|
| 7550479-2177934-3-65D4 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 7550479-2177934-3-65 | 5/1 Secondary reference Naval Sea Systems Command |
| 803-2177934-X3XX-65D4 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| H547-0001-2177934-3-65 | 5/1 Secondary reference U.S. Government activity |
| 803-2177934-X3XX-65 | 3/1 Design control — primary reference Naval Sea Systems Command |
| 7383858-2177934-3-65D4 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| H547-0001-2177934-3-65D4 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| G547-0003-2177934-3-65D4 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| G547-0003-2177934-3-65 | 5/1 Secondary reference U.S. Government activity |
| 7383858-2177934-3-65 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 4820-01-641-8467 is a Flange,gland,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-641-8467: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PRODURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES. 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.