The Valve,ball, cataloged under National Stock Number 4820-00-045-5634, 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 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-045-5634 |
| Primary Part Number | SS845-2109876ASSYG1 1-2INL1 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 1.500 INCHES FIRST END IN |
| Connection Style | SOCKET WITH BRAZING RING FIRST END |
| Criticality Code Justification | ZZZY |
| Style Designator | STRAIGHT THRU |
| Bonnet Type | PACKING RETAINING |
| Material | COPPER ALLOY 630 STEM |
| Material | STEEL COMP 304 FLOW CONTROL DEVICE |
| Material | COPPER ALLOY 903 BODY |
| Material | PLASTIC POLYUNDECANOAMIDE AND GLASS FIBER SEAT |
| Valve Operation Method | MANUAL |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 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 |
|---|---|
| SS845-2109876ASSYG1 1-2INL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 2640-413X1AASYG1 1-2INL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| SS845-2109876ASSYG1 1-2IN | 3/1 Design control — primary reference U.S. Government activity |
| 2640-413X1ASSYG1 1-2IN | 5/1 Secondary reference U.S. Government activity |
NSN 4820-00-045-5634 is a Valve,ball, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-045-5634 has 2 manufacturer part numbers on file: SS845-2109876ASSYG1 1-2INL1 (Naval Inventory Control Point Mechanicsburg), 2640-413X1AASYG1 1-2INL1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for SS845-2109876ASSYG1 1-2INL1: Nominal Pipe Size Accommodated: 1.500 INCHES FIRST END IN; Connection Style: SOCKET WITH BRAZING RING FIRST END; Criticality Code Justification: ZZZY; Style Designator: STRAIGHT THRU. 11 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.