The Sleeve,shear Valve, cataloged under National Stock Number 4820-01-249-9164, 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 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-249-9164 |
| Primary Part Number | 412-4678004 ITEM 3L1 |
| Item Name | Sleeve,shear Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| General Characteristics Item Description | BRONZE ALLOY; 2.190 IN. O/A LG; 2.002 IN. O/A H; 4 HOLES 0.250 IN. DIA,DRILLED 0.250 IN. DEEP,EQUALLY SPACED IN |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| 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 |
|---|---|
| 412-4678004 ITEM 3L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 87684-1504 ITEM 3L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 412-4678004 ITEM 3 | 3/1 Design control — primary reference U.S. Government activity |
| 87684-1504 ITEM 3 | 5/1 Secondary reference U.S. Government activity |
NSN 4820-01-249-9164 is a Sleeve,shear Valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-249-9164 has 2 manufacturer part numbers on file: 412-4678004 ITEM 3L1 (Naval Inventory Control Point Mechanicsburg), 87684-1504 ITEM 3L1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 412-4678004 ITEM 3L1: General Characteristics Item Description: BRONZE ALLOY; 2.190 IN. O/A LG; 2.002 IN. O/A H; 4 HOLES 0.250 IN. DIA,DRILLED 0.250 IN. DEEP,EQUALLY SPACED IN; Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS. 3 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 4820-01-249-9164 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.