Lock, Valve Spring Retainer2815-01-078-1508

NSN 2815-01-078-1508 · NIIN 010781508

FSC 2815 — Diesel Engines and Components · FSG 28 — Engines, Turbines, and Components

Government record, cited

Also searched as 2815-01-078-1508 · 2815010781508 · NIIN 010781508 · 01-078-1508 · FSC 2815 Diesel Engines and Components

Nearby stock numbers ← 2815-01-078-1337 Cover, Engine Poppet Valve Rocker · 2815-01-078-2267 →

Features

Lock,valve Spring Retainer — FSC 2815
First Ridge Radius: 0.031 INCHES NOMINAL IN
Minimum Inside Diameter: 0.312 INCHES IN
Thread Provision: UNTHREADED
Distance From Bottom to First Ridge Center: 0.931 INCHES NOMINAL IN
First Ridge Width: 0.085 INCHES NOMINAL IN
Largest Inside Diameter: 0.350 INCHES NOMINAL IN
Style Designator: STRAIGHT BORE W/ONE RIDGE

Identification

NSN: 2815-01-078-1508
NIIN: 010781508
FSC: 2815 — Diesel Engines and Components
FSG: 28 — Engines, Turbines, and Components

General Description

The Lock,valve Spring Retainer, cataloged under National Stock Number 2815-01-078-1508, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	2815-01-078-1508
Item Name	Lock,valve Spring Retainer
FSC / FSG	2815 / 28 — Diesel Engines and Components
Status	ACTIVE
First Ridge Radius	0.031 INCHES NOMINAL IN
Minimum Inside Diameter	0.312 INCHES IN
Thread Provision	UNTHREADED
Distance From Bottom to First Ridge Center	0.931 INCHES NOMINAL IN
First Ridge Width	0.085 INCHES NOMINAL IN
Largest Inside Diameter	0.350 INCHES NOMINAL IN
Style Designator	STRAIGHT BORE W/ONE RIDGE
Largest Outside Width	0.500 INCHES NOMINAL IN
Outside Included Angle in Deg	12.0
Casehardening Indicator	NOT CASEHARDENED
Material	STEEL

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
509 6712	3/9 Design control — primary reference Wills Industries Inc

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 2815-01-078-1508?

NSN 2815-01-078-1508 is a Lock,valve Spring Retainer, classified under FSC 2815, Diesel Engines and Components. Status: active.

What are the specifications of 2815-01-078-1508?

Key specifications for 2815-01-078-1508: Overall Height: 0.390 INCHES NOMINAL IN; First Ridge Radius: 0.031 INCHES NOMINAL IN; Minimum Inside Diameter: 0.312 INCHES IN; Thread Provision: UNTHREADED. 11 specifications are documented in the U.S. Government catalog.

Is NSN 2815-01-078-1508 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.

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