The Valve,ball, cataloged under National Stock Number 4820-01-696-5584, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-696-5584 |
| Primary Part Number | 2643-670-01 ASSY IREL1 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Material | COPPER AND NICKEL OVERALL |
| Valve Operation Method | AUTOMATIC |
| Reference Number Differentiating Characteristics | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 2643-670-01 ASSY IREL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 845-7108792 ASSY IREL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 2643-670-01 ASSY IRE | 5/2 Secondary reference U.S. Government activity |
| 845-7108792 ASSY IRE | 3/1 Design control — primary reference Naval Sea Systems Command |
| 845-7108792 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4820-01-696-5584 is a Valve,ball, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-696-5584 has 2 manufacturer part numbers on file: 2643-670-01 ASSY IREL1 (Naval Inventory Control Point Mechanicsburg), 845-7108792 ASSY IREL1 (Naval Inventory Control Point Mechanicsburg).
6 possible matches (shared part number, not a government interchangeability claim): 5310-01-708-6156, 9390-01-708-7150, 5315-01-708-8226. Verify interchangeability with system specifications before substitution.
Key specifications for 2643-670-01 ASSY IREL1: Criticality Code Justification: ZZZY; Part Name Assigned by Controlling Agency: VALVE ASSEMBLY-BALL 2-1/2 EMERGENCY BLOW 4500PSI; Material: COPPER AND NICKEL OVERALL; Valve Operation Method: AUTOMATIC. 4 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.