The Seat,valve, cataloged under National Stock Number 4820-01-314-7380, 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 2 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-314-7380 |
| Primary Part Number | 2529303 PIECE 7, TORLON4203Q3 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | ITEMS THAT SUPPORT A LEVEL I OR SUBSAFE CRITICAL SYSTEM/COMPONENT THAT HAS UNDERGONE QUALITY ASSURANCE DURING THE ACQUISITION PROCESS AND REQUIRES OBJECTIVE QUALITY EVIDENCE (OQE) TRACEABLE TO PERMANENT MARKING ON THE MATERIAL |
| 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 |
|---|---|
| 2529303 PIECE 7, TORLON4203Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| 2640-801X2 PC 26 OR 46Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| 641-405-11 ITEM 59 | Bemis Manufacturing Company Dba Bemis Health Care (USA) |
| 2180713 PIECE 7, TORLON4203Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| 2641-405-11 ITEM 59Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| 2007651 PIECE 8, TORLON4203Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| 2640-801X2, PIECE 46 Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 2640-801X2, PIECE 46 | 5/1 Secondary reference Yankee Machine Inc |
| 2007651 PIECE 8, TORLON4203 | 5/1 Secondary reference U.S. Government activity |
| 2640-801X2, PIECE 46 | 5/1 Secondary reference U.S. Government activity |
| 2640-801X2 PC 26 OR 46 | 3/1 Design control — primary reference U.S. Government activity |
| 2641-405-11 ITEM 59 | 5/1 Secondary reference U.S. Government activity |
| 56-97-0643A | 5/2 Secondary reference U.S. Government activity |
| 2529303 PIECE 7, TORLON4203 | 5/1 Secondary reference U.S. Government activity |
| 2180713 PIECE 7, TORLON4203 | 5/1 Secondary reference U.S. Government activity |
NSN 4820-01-314-7380 is a Seat,valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-314-7380 has 7 manufacturer part numbers on file: 2529303 PIECE 7, TORLON4203Q3 (Naval Inventory Control Point Mechanicsburg), 2640-801X2 PC 26 OR 46Q3 (Naval Inventory Control Point Mechanicsburg), 641-405-11 ITEM 59 (Bemis Manufacturing Company Dba Bemis Health Care), 2180713 PIECE 7, TORLON4203Q3 (Naval Inventory Control Point Mechanicsburg), 2641-405-11 ITEM 59Q3 (Naval Inventory Control Point Mechanicsburg) and 2 more.
1 possible match (shared part number, not a government interchangeability claim): 4820-01-549-4255. Verify interchangeability with system specifications before substitution.
Key specifications for 2529303 PIECE 7, TORLON4203Q3: Criticality Code Justification: ZZZY; Special Features: MATERAL TORLON 4203; End Item Identification: VALVE,BALL,2 INCH BLEED IN; Reference Number Differentiating Characteristics: ITEMS THAT SUPPORT A LEVEL I OR SUBSAFE CRITICAL SYSTEM/COMPONENT THAT HAS UNDERGONE QUALITY ASSURANCE DURING THE ACQUISITION PROCESS AND REQUIRES OBJECTIVE QUALITY EVIDENCE (OQE) TRACEABLE TO PERMANENT MARKING ON THE MATERIAL. 2 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.