The Cap,valve, cataloged under National Stock Number 4820-01-399-7919, 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 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-399-7919 |
| Primary Part Number | E-301461SS |
| Item Name | Cap,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Valve Type for Which Designed | CHECK |
| Criticality Code Justification | ZZZY |
| Material Document and Classification | MIL-C-20159, UNS C96400 MIL SPEC SINGLE MATERIAL RESPONSE |
| Valve Size for Which Designed | 4.000 INCHES IN |
| Material | COPPER ALLOY |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR SUBSAFE ITEMS |
| Attachment Method | BOLTS |
| 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 |
|---|---|
| E-301461SS | Naval Inventory Control Point Mechanicsburg (USA) |
| 301461L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| DS-B-90380 ITEM 12L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 301461SS | Naval Inventory Control Point Mechanicsburg (USA) |
| DS-B-90301 ITEM 12L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 301461 | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| DS-B-90301 ITEM 12SS | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| DS-B-90301 ITEM 12 | 5/1 Secondary reference Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| E-301461 | 3/1 Design control — primary reference Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
NSN 4820-01-399-7919 is a Cap,valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-399-7919 has 7 manufacturer part numbers on file: E-301461SS (Naval Inventory Control Point Mechanicsburg), 301461L1 (Naval Inventory Control Point Mechanicsburg), DS-B-90380 ITEM 12L1 (Naval Inventory Control Point Mechanicsburg), 301461SS (Naval Inventory Control Point Mechanicsburg), DS-B-90301 ITEM 12L1 (Naval Inventory Control Point Mechanicsburg) and 2 more.
1 possible match (shared part number, not a government interchangeability claim): 5340-01-579-9427. Verify interchangeability with system specifications before substitution.
Key specifications for E-301461SS: Valve Type for Which Designed: CHECK; Criticality Code Justification: ZZZY; Material Document and Classification: MIL-C-20159, UNS C96400 MIL SPEC SINGLE MATERIAL RESPONSE; Valve Size for Which Designed: 4.000 INCHES IN. 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.
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.