PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RM-102Insulator,disk

The Delbert Blinn Co Inc · NSN 5970-00-052-5221 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-052-5221 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-052-5221. Primary manufacturer part number: RM-102.
Features
  • Insulator,disk — FSC 5970
  • Second Hole Spacing: 0.688 INCHES NOMINAL IN
  • First Hole Spacing: 0.236 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
  • Style Designator: DRILLED, FLAT
  • First Hole Diameter: 0.184 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
  • Outside Diameter: 1.160 INCHES MINIMUM AND 1.190 INCHES MAXIMUM IN
  • Material and Location: OVERALL MICA, HH-I-536
  • 7 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Insulator,disk, cataloged under National Stock Number 5970-00-052-5221, 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 The Delbert Blinn Co Inc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5970-00-052-5221
Primary Part NumberRM-102
Item NameInsulator,disk
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerThe Delbert Blinn Co Inc
StatusCANCELLED
Second Hole Spacing0.688 INCHES NOMINAL IN
First Hole Spacing0.236 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
Style DesignatorDRILLED, FLAT
First Hole Diameter0.184 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
Outside Diameter1.160 INCHES MINIMUM AND 1.190 INCHES MAXIMUM IN
Material and LocationOVERALL MICA, HH-I-536
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
6850-00-300-9008 INTERCHANGEABLE
Cleaning Compound,aluminum Surfa
2805-00-511-531642992 INTERCHANGEABLE
Bearing,standard
Brinkley Technology Group Llc Dba Hercules Manufacturing
6850-00-527-2426 INTERCHANGEABLE
Cleaning Compound,aluminum Surfa
5330-00-641-3427 INTERCHANGEABLE
Seal,plain Encased
2990-01-218-275042992 INTERCHANGEABLE
Breather Filter,emission Control
Wix Corp
Cross-Reference Index
Part NumberManufacturer
DIE715 Reliance Mica Company, Inc. (USA)
RM-102 PRIMARY The Delbert Blinn Co Inc (USA)
42-992 PRIMARY Raytheon Company Div Corp (USA)
2085249 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
ES3138-701 Drs Sustainment Systems, Inc. (USA)
715 Reliance Mica Company, Inc. (USA)
715K Reliance Mica Company, Inc. (USA)
Related Parts
6850-00-300-9008INTERCHANGEABLE
CLEANING COMPOUND,ALUMINUM SURFA
2805-00-511-5316INTERCHANGEABLE
BEARING,STANDARD
42992
6850-00-527-2426INTERCHANGEABLE
CLEANING COMPOUND,ALUMINUM SURFA
5330-00-641-3427INTERCHANGEABLE
SEAL,PLAIN ENCASED
2990-01-218-2750INTERCHANGEABLE
BREATHER FILTER,EMISSION CONTROL
42992

Frequently Asked Questions

What is NSN 5970-00-052-5221?

NSN 5970-00-052-5221 is a Insulator,disk, manufactured by The Delbert Blinn Co Inc, classified under FSC 5970 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5970-00-052-5221?

NSN 5970-00-052-5221 has 7 cross-referenced part numbers: DIE715 (Reliance Mica Company, Inc.), RM-102 (The Delbert Blinn Co Inc), 42-992 (Raytheon Company Div Corp), 2085249 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), ES3138-701 (Drs Sustainment Systems, Inc.) and 2 more.

What NSN replaces 5970-00-052-5221?

There are 5 known substitutes for 5970-00-052-5221: 6850-00-300-9008, 2805-00-511-5316, 6850-00-527-2426 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of RM-102?

Key specifications for RM-102: Second Hole Spacing: 0.688 INCHES NOMINAL IN; First Hole Spacing: 0.236 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN; Style Designator: DRILLED, FLAT; Overall Height: 0.0015 INCHES MINIMUM AND 0.0025 INCHES MAXIMUM IN. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5970-00-052-5221 still in active supply?

NSN 5970-00-052-5221 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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