The Valve Assembly,safety Relief, cataloged under National Stock Number 2815-01-121-0618, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-01-121-0618 |
| Primary Part Number | 2N8814 |
| Item Name | Valve Assembly,safety Relief |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF TWO SPRING LOADED RELIEF VALVES,MAJOR DIA. 5.250 IN.; O/A HEIGHT 6.38 IN.; MOUNTED ON STEEL COVER; O/A LGTH 20.12 IN.; O/A WIDTH 11.50 IN.; O/A THICKNESS 0.250 IN.; 16 MOUNTING HOLES 0.422 IN. DIA. EQUALLY SPACED 0.56 IN. FROM OUTER EDGE; FUNCTIONS AS CRANKCASE EXPLOSION RELIEF VALVE; END ITEM MODEL D-398-TA CATERPILLAR DIESEL ENGINE IN |
| Cubic Measure | 1.000 CUBIC FEET |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2N8814 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 2-V-3374-103 | Penn-Troy Mfg Inc (USA) |
| Reference | Meaning |
|---|---|
| 2-V-3374-103 | C/1 Advisory reference — outside the item-of-supply concept Caterpillar Inc Div Caterpillar Defense |
NSN 2815-01-121-0618 is a Valve Assembly,safety Relief, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-121-0618 has 2 manufacturer part numbers on file: 2N8814 (Caterpillar Inc Div Caterpillar Defense), 2-V-3374-103 (Penn-Troy Mfg Inc).
Key specifications for 2N8814: General Characteristics Item Description: CONSISTS OF TWO SPRING LOADED RELIEF VALVES,MAJOR DIA. 5.250 IN.; O/A HEIGHT 6.38 IN.; MOUNTED ON STEEL COVER; O/A LGTH 20.12 IN.; O/A WIDTH 11.50 IN.; O/A THICKNESS 0.250 IN.; 16 MOUNTING HOLES 0.422 IN. DIA. EQUALLY SPACED 0.56 IN. FROM OUTER EDGE; FUNCTIONS AS CRANKCASE EXPLOSION RELIEF VALVE; END ITEM MODEL D-398-TA CATERPILLAR DIESEL ENGINE IN; Cubic Measure: 1.000 CUBIC FEET. 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.