NSN 5970-00-148-3103 · NIIN 001483103 · Part number BYLB259
Wynnson Enterprises, Inc. · FSC 5970 — Electrical Insulators and Insulating Materials · FSG 59 — Electrical and Electronic Equipment Components · CAGE 39484
Government record, cited
NSN 5970-00-148-3103 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-148-3103. Manufacturer of record part number: BYLB259.
Also searched as5970-00-148-3103 ·
5970001483103 ·
NIIN 001483103 ·
00-148-3103 ·
FSC 5970 Electrical Insulators and Insulating Materials · CAGE 39484 · BYLB259
FSC: 5970 — Electrical Insulators and Insulating Materials
FSG: 59 — Electrical and Electronic Equipment Components
Primary part number: BYLB259
Manufacturer: Wynnson Enterprises, Inc.
General Description
The Insulator,plate, cataloged under National Stock Number 5970-00-148-3103, is classified within Federal Supply Class 5970 (Electrical Insulators and Insulating Materials) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Wynnson Enterprises, Inc.. Government technical data includes 10 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5970-00-148-3103
Primary Part Number
BYLB259
Item Name
Insulator,plate
FSC / FSG
5970 / 59 — Electrical Insulators and Insulating Materials
Manufacturer
Wynnson Enterprises, Inc.
Status
ACTIVE
Fifth Hole Spacing
1.645 INCHES NOMINAL IN
Sixth Hole Spacing
0.470 INCHES NOMINAL IN
First Hole Diameter
0.497 INCHES NOMINAL IN
Third Hole Spacing
2.057 INCHES NOMINAL IN
Style Designator
DRILLED, FLAT
Second Hole Spacing
0.224 INCHES NOMINAL IN
Second Hole Diameter
0.178 INCHES NOMINAL IN
Fourth Hole Spacing
0.496 INCHES NOMINAL IN
First Hole Spacing
0.149 INCHES NOMINAL IN
Material
MICA OVERALL
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Ge Aviation Systems Llc Dba Ge Aviation Systems Llc (USA)
No interchangeability data on file.
Other items in FSC 5970 — Electrical Insulators and Insulating Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5970-00-001-1330
5970-00-001-1330 · Item name not on file
5970-00-001-1357
INSULATOR,BUSHING
5970-00-001-1418
INSULATOR,BUSHING
5970-00-001-1420
INSULATOR,PLATE
5970-00-001-1472
INSULATOR,PLATE
5970-00-001-1476
INSULATOR,WASHER
5970-00-001-1477
5970-00-001-1477 · Item name not on file
5970-00-001-1479
5970-00-001-1479 · Item name not on file
Frequently Asked Questions
What is NSN 5970-00-148-3103?
NSN 5970-00-148-3103 is a Insulator,plate, manufactured by Wynnson Enterprises, Inc., classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
What part numbers are listed for NSN 5970-00-148-3103?
NSN 5970-00-148-3103 has 2 manufacturer part numbers on file: BYLB259 (Wynnson Enterprises, Inc.), BYLB259 (Ge Aviation Systems Llc Dba Ge Aviation Systems Llc).
What are the specifications of BYLB259?
Key specifications for BYLB259: Overall Height: 0.020 INCHES NOMINAL IN; Fifth Hole Spacing: 1.645 INCHES NOMINAL IN; Sixth Hole Spacing: 0.470 INCHES NOMINAL IN; First Hole Diameter: 0.497 INCHES NOMINAL IN. 10 specifications are documented in the U.S. Government catalog.
Is NSN 5970-00-148-3103 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). 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.