The Seat,valve, cataloged under National Stock Number 4820-01-521-0019, 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 3 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-521-0019 |
| Primary Part Number | 930-03 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc |
| Status | ACTIVE |
| Material Document and Classification | QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Style Designator | PLAIN FLANGED |
| Material | NICKEL ALLOY OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 40754-4 | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
| 40754-4 FIND NO 13 | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
| 930-03 PRIMARY | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
NSN 4820-01-521-0019 is a Seat,valve, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-521-0019 has 3 cross-referenced part numbers: 40754-4 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40754-4 FIND NO 13 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 930-03 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).
There are 11 known substitutes for 4820-01-521-0019: 6605-00-031-7946, 4720-00-604-4412, 5970-00-998-2800 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 930-03: Material Document and Classification: QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Style Designator: PLAIN FLANGED; Material: NICKEL ALLOY OVERALL; End Item Identification: 4820-01-521-0018 PRESSURE REGULATING VALVE; W/S NIMITZ. 4 total characteristics are documented in the Federal Logistics Information System.