The Stem,fluid Valve, cataloged under National Stock Number 4820-01-521-0020, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-521-0020 |
| Primary Part Number | 937-01 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc |
| Status | ACTIVE |
| Material | NICKEL ALLOY |
| Valve Size for Which Designed | 0.500 INCHES IN |
| Features Provided | THREADED |
| Stem Actuating End Type | THREADED EXTERNALLY |
| Material Document and Classification | QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE |
| Valve Type for Which Designed | REGULATOR |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 40754-4 FIND NO 23 | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
| 937-01 PRIMARY | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
| 40754-4 | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
NSN 4820-01-521-0020 is a Stem,fluid Valve, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-521-0020 has 3 cross-referenced part numbers: 40754-4 FIND NO 23 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 937-01 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40754-4 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).
There are 8 known substitutes for 4820-01-521-0020: 5995-01-066-8218, 5962-01-232-9978, 5330-01-247-1095 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 937-01: Material: NICKEL ALLOY; Valve Size for Which Designed: 0.500 INCHES IN; End Item Identification: 4820-01-521-0018 PRESSURE REGULATING VALVE; W/S: NIMITZ; Special Features: BOTTOM AND TOP GUIDED STEM. 8 total characteristics are documented in the Federal Logistics Information System.