PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-M-38527Insulator,washer

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5970-01-098-8564 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-01-098-8564 — this item is cataloged by the U.S. Government under National Stock Number 5970-01-098-8564. Primary manufacturer part number: MIL-M-38527.
Features
  • Insulator,washer — FSC 5970
  • Outside Diameter: 0.812 INCHES NOMINAL IN
  • Inside Diameter: 0.265 INCHES NOMINAL IN
  • Style Designator: ROUND, FLAT
  • Material: PLASTIC POLYAMIDE NYLON OVERALL
  • 2 verified cross-references
  • Primary manufacturer: Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Polyamide Nylon Overall construction
General Description

The Insulator,washer, cataloged under National Stock Number 5970-01-098-8564, is classified within Federal Supply Class 5970 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5970-01-098-8564
Primary Part NumberMIL-M-38527
Item NameInsulator,washer
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Outside Diameter0.812 INCHES NOMINAL IN
Inside Diameter0.265 INCHES NOMINAL IN
Style DesignatorROUND, FLAT
MaterialPLASTIC POLYAMIDE NYLON OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5999-00-308-6517 INTERCHANGEABLE
Mounting Pad,electrical-Electron
5999-01-026-5319 INTERCHANGEABLE
Mounting Pad,electrical-Electron
5999-01-029-6665 INTERCHANGEABLE
Mounting Pad,electrical-Electron
5970-01-071-3395 INTERCHANGEABLE
Insulator,bushing
5999-01-080-5947 INTERCHANGEABLE
Mounting Pad,electrical-Electron
5999-01-145-8757 INTERCHANGEABLE
Mounting Pad,electrical-Electron
5999-01-240-1382 INTERCHANGEABLE
Mounting Pad,electrical-Electron
5970-01-281-6014 INTERCHANGEABLE
Insulator,washer
5999-01-338-0995 INTERCHANGEABLE
Mounting Pad,electrical-Electron
5999-01-338-0996 INTERCHANGEABLE
Mounting Pad,electrical-Electron
Cross-Reference Index
Part NumberManufacturer
MIL-M-38527 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M38527-8-81P Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5999-00-308-6517INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
5999-01-026-5319INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
5999-01-029-6665INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
5970-01-071-3395INTERCHANGEABLE
INSULATOR,BUSHING
5999-01-080-5947INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
5999-01-145-8757INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
5999-01-240-1382INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
5970-01-281-6014INTERCHANGEABLE
INSULATOR,WASHER
5999-01-338-0995INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
5999-01-338-0996INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
5999-01-355-5732INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
5999-01-368-2576INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON

Frequently Asked Questions

What is NSN 5970-01-098-8564?

NSN 5970-01-098-8564 is a Insulator,washer, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5970 (No Item Name Available). Status: active.

What are the part numbers for NSN 5970-01-098-8564?

NSN 5970-01-098-8564 has 2 cross-referenced part numbers: MIL-M-38527 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M38527-8-81P (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5970-01-098-8564?

There are 12 known substitutes for 5970-01-098-8564: 5999-00-308-6517, 5999-01-026-5319, 5999-01-029-6665 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-M-38527?

Key specifications for MIL-M-38527: Outside Diameter: 0.812 INCHES NOMINAL IN; Inside Diameter: 0.265 INCHES NOMINAL IN; Style Designator: ROUND, FLAT; Material: PLASTIC POLYAMIDE NYLON OVERALL. 5 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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