The Adapter,splined,globe Valve, cataloged under National Stock Number 4820-01-121-2903, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-121-2903 |
| Primary Part Number | 845-2445066 ITEM 83 |
| Item Name | Adapter,splined,globe Valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Naval Ship Systems Command |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL;O/A LG 1.562 IN.;MAJOR DIA 1.977 IN. NOMINAL;MINOR DIA 1.721 IN. NOMINAL;8/16 PITCH-15 TOOTH FLAT ROOT SIDE FIT SPLINES;30 DEG CHAMFER BOTH ENDS TO MINOR DIA;ID 0.881 IN.;TWO KEYWAYS 180 DEG APART,0.90 IN. WIDE IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 845-2445066 ITEM 83 PRIMARY | Naval Ship Systems Command (USA) |
| 845-2445066 | Naval Ship Systems Command (USA) |
| 845-2181282 PIECE 53 3IN PRIMARY | Naval Sea Systems Command (USA) |
| 26M77-100 ITEM 83 PRIMARY | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 2620-920X12 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 2620-920X12 PIECE 53 3IN | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 2620-920X12 PIECE 53 3IN PRIMARY | Hydro-Aire Aerospace Corp (USA) |
| 845-2181282 | Naval Sea Systems Command (USA) |
| 26M77-100 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
NSN 4820-01-121-2903 is a Adapter,splined,globe Valve, manufactured by Naval Ship Systems Command, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-121-2903 has 9 cross-referenced part numbers: 845-2445066 ITEM 83 (Naval Ship Systems Command), 845-2445066 (Naval Ship Systems Command), 845-2181282 PIECE 53 3IN (Naval Sea Systems Command), 26M77-100 ITEM 83 (Electric Boat Corporation Div General Dynamics Electric Boat), 2620-920X12 (Electric Boat Corporation Div General Dynamics Electric Boat) and 4 more.
There are 12 known substitutes for 4820-01-121-2903: 4820-00-900-2344, 4820-01-061-5106, 5360-01-068-7326 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 845-2445066 ITEM 83: General Characteristics Item Description: STEEL;O/A LG 1.562 IN.;MAJOR DIA 1.977 IN. NOMINAL;MINOR DIA 1.721 IN. NOMINAL;8/16 PITCH-15 TOOTH FLAT ROOT SIDE FIT SPLINES;30 DEG CHAMFER BOTH ENDS TO MINOR DIA;ID 0.881 IN.;TWO KEYWAYS 180 DEG APART,0.90 IN. WIDE IN. 1 total characteristics are documented in the Federal Logistics Information System.