PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10338Insulator,disk

Grimes Aerospace Company · NSN 5970-00-578-0866 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-578-0866 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-578-0866. Primary manufacturer part number: 10338.
Features
  • Insulator,disk — FSC 5970
  • Second Hole Spacing: 1.625 INCHES NOMINAL IN
  • Second Hole Diameter: 0.125 INCHES NOMINAL IN
  • Outside Diameter: 4.000 INCHES NOMINAL IN
  • Material Document and Classification: MIL-P-997, TYPE GSG MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Material: GLASS AND RESIN SILICONE OVERALL
  • Style Designator: DRILLED, FLAT
  • First Hole Diameter: 0.125 INCHES NOMINAL IN
Applications
  • Applications requiring Glass and Resin Silicone Overall construction
General Description

The Insulator,disk, cataloged under National Stock Number 5970-00-578-0866, 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 Grimes Aerospace Company. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5970-00-578-0866
Primary Part Number10338
Item NameInsulator,disk
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerGrimes Aerospace Company
StatusACTIVE
Second Hole Spacing1.625 INCHES NOMINAL IN
Second Hole Diameter0.125 INCHES NOMINAL IN
Outside Diameter4.000 INCHES NOMINAL IN
Material Document and ClassificationMIL-P-997, TYPE GSG MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialGLASS AND RESIN SILICONE OVERALL
Style DesignatorDRILLED, FLAT
First Hole Diameter0.125 INCHES NOMINAL IN
First Hole Spacing0.812 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4320-00-218-323710338 INTERCHANGEABLE
Ring,wearing
Rps-Fl, Inc. Dba Rps Inc
5950-00-713-4792 INTERCHANGEABLE
Coil,radio Frequency
5330-01-037-714710338 INTERCHANGEABLE
Gasket
Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group
5365-01-278-958710338 INTERCHANGEABLE
Spacer,plate
Level 10 Industries, Inc. Div Level 10 Industries
4820-01-323-732510338 INTERCHANGEABLE
Ball,check
Liquid Metronics Inc
5330-01-503-032227-54021 1 INTERCHANGEABLE
Gasket
Brunswick Corp Dba Mercury Marine Div Mercury Marine
Cross-Reference Index
Part NumberManufacturer
10338 PRIMARY Grimes Aerospace Company (USA)
Related Parts
4320-00-218-3237INTERCHANGEABLE
RING,WEARING
10338
5950-00-713-4792INTERCHANGEABLE
COIL,RADIO FREQUENCY
5330-01-037-7147INTERCHANGEABLE
GASKET
10338
5365-01-278-9587INTERCHANGEABLE
SPACER,PLATE
10338
4820-01-323-7325INTERCHANGEABLE
BALL,CHECK
10338
5330-01-503-0322INTERCHANGEABLE
GASKET
27-54021 1

Frequently Asked Questions

What is NSN 5970-00-578-0866?

NSN 5970-00-578-0866 is a Insulator,disk, manufactured by Grimes Aerospace Company, classified under FSC 5970 (No Item Name Available). Status: active.

What are the part numbers for NSN 5970-00-578-0866?

NSN 5970-00-578-0866 has 1 cross-referenced part number: 10338 (Grimes Aerospace Company).

What NSN replaces 5970-00-578-0866?

There are 6 known substitutes for 5970-00-578-0866: 4320-00-218-3237, 5950-00-713-4792, 5330-01-037-7147 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10338?

Key specifications for 10338: Second Hole Spacing: 1.625 INCHES NOMINAL IN; Second Hole Diameter: 0.125 INCHES NOMINAL IN; Outside Diameter: 4.000 INCHES NOMINAL IN; Material Document and Classification: MIL-P-997, TYPE GSG MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 9 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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