The Lock,valve Spring Retainer, cataloged under National Stock Number 2815-01-331-8866, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
2815-01-331-8866
Item Name
Lock,valve Spring Retainer
FSC / FSG
2815 / 28 — Diesel Engines and Components
Status
ACTIVE
Style Designator
ROUND FLANGE-TAPERED BORE
Casehardening Indicator
CASEHARDENED
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
328-61410
3/2Design control — primary reference
U.S. Government activity
No interchangeability data on file.
Other items in FSC 2815 — Diesel Engines and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2815-00-000-0075
ENGINE,DIESEL
2815-00-001-0022
VALVE,POPPET,ENGINE
2815-00-001-3475
PISTON,INTERNAL COMBUSTION ENGIN
2815-00-001-7728
TAPPET,PUMP
2815-00-001-7737
2815-00-001-7737 · Item name not on file
2815-00-001-7805
OIL PUMP ASSEMBLY
2815-00-001-7806
CAMSHAFT,ENGINE
2815-00-001-7813
RING SET,PISTON
Frequently Asked Questions
What is NSN 2815-01-331-8866?
NSN 2815-01-331-8866 is a Lock,valve Spring Retainer, classified under FSC 2815, Diesel Engines and Components. Status: active.
What are the specifications of 2815-01-331-8866?
Key specifications for 2815-01-331-8866: Style Designator: ROUND FLANGE-TAPERED BORE; Casehardening Indicator: CASEHARDENED. 2 specifications are documented in the U.S. Government catalog.
Is NSN 2815-01-331-8866 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.