The Stem,fluid Valve, cataloged under National Stock Number 4820-01-440-3978, 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 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-440-3978 |
| Primary Part Number | SA-2324-1 PIECE 8S1 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Valve Type for Which Designed | GLOBE |
| Stem Actuating End Type | THREADED EXTERNALLY |
| Criticality Code Justification | ZZZY |
| Material Document and Classification | ASTM A276, TYPE 410 ASSN STD SINGLE MATERIAL RESPONSE |
| Valve Size for Which Designed | 3.000 INCHES AND 4.000 INCHES IN |
| Material | STEEL COMP 410 |
| Reference Number Differentiating Characteristics | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS THAT ARE UNIQUE TO FOSSIL FUEL POWERED SURFACE SHIPS MAIN STEAM, CATAPULT STEAM, AND HIGH PRESSURE STEAM DRAIN SYSTEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| SA-2324-1 PIECE 8S1 | Naval Inventory Control Point Mechanicsburg (USA) |
| SA-2324-1 PC 8 4INS1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| SA-2324-1 PIECE 8 | 5/1 Secondary reference The Walworth Company |
| SA-2324-1 PC 8 4IN | 3/1 Design control — primary reference The Walworth Company |
NSN 4820-01-440-3978 is a Stem,fluid Valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-440-3978 has 2 manufacturer part numbers on file: SA-2324-1 PIECE 8S1 (Naval Inventory Control Point Mechanicsburg), SA-2324-1 PC 8 4INS1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for SA-2324-1 PIECE 8S1: Valve Type for Which Designed: GLOBE; Stem Actuating End Type: THREADED EXTERNALLY; Criticality Code Justification: ZZZY; Material Document and Classification: ASTM A276, TYPE 410 ASSN STD SINGLE MATERIAL RESPONSE. 7 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.
NSN 4820-01-440-3978 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.