PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-I-49466/1Insulator,washer

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5970-01-120-9053 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-01-120-9053 — this item is cataloged by the U.S. Government under National Stock Number 5970-01-120-9053. Primary manufacturer part number: MIL-I-49466/1.
Features
  • Insulator,washer — FSC 5970
  • Outside Diameter: 1.000 INCHES NOMINAL IN
  • Inside Diameter: 0.265 INCHES NOMINAL IN
  • Style Designator: ROUND, FLAT
  • Material and Location: OVERALL PLASTIC, POLYIMIDE, MIL-P-46112, TYPE 1
  • 12 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
General Description

The Insulator,washer, cataloged under National Stock Number 5970-01-120-9053, 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 12 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5970-01-120-9053
Primary Part NumberMIL-I-49466/1
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 Diameter1.000 INCHES NOMINAL IN
Inside Diameter0.265 INCHES NOMINAL IN
Style DesignatorROUND, FLAT
Material and LocationOVERALL PLASTIC, POLYIMIDE, MIL-P-46112, TYPE 1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5365-00-652-8939 INTERCHANGEABLE
Spacer,sleeve
5815-01-113-0737430227 INTERCHANGEABLE
Plate
Telemechanics Inc
6650-01-562-009655895 INTERCHANGEABLE
Harness,quick Release
Leupold & Stevens Inc
2815-01-680-005655895 INTERCHANGEABLE
Manifold,intake
Hyspan Precision Products, Inc. Dba Hyspan Precision Products Inc
Cross-Reference Index
Part NumberManufacturer
MIL-I-49466/1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
3180099-25 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
M38527/08-084P Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-M-38527/8 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
43-02-27 Accessories for Electronics Inc Dba Afe (USA)
M49466/01-082P Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M38527/8-84P Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
43-02-27 Thermalloy Co Inc (USA)
00055895 APC, American Power Conversion (GBR)
55895 APC, American Power Conversion (GBR)
43-0227 Thermalloy Co Inc (USA)
T511005525 Lockheed Martin Librascope Corporation (USA)
Related Parts
5365-00-652-8939INTERCHANGEABLE
SPACER,SLEEVE
5815-01-113-0737INTERCHANGEABLE
PLATE
430227
6650-01-562-0096INTERCHANGEABLE
HARNESS,QUICK RELEASE
55895
2815-01-680-0056INTERCHANGEABLE
MANIFOLD,INTAKE
55895

Frequently Asked Questions

What is NSN 5970-01-120-9053?

NSN 5970-01-120-9053 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 5970-01-120-9053?

NSN 5970-01-120-9053 has 12 cross-referenced part numbers: MIL-I-49466/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 3180099-25 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), M38527/08-084P (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-M-38527/8 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 43-02-27 (Accessories for Electronics Inc Dba Afe) and 7 more.

What NSN replaces 5970-01-120-9053?

There are 4 known substitutes for 5970-01-120-9053: 5365-00-652-8939, 5815-01-113-0737, 6650-01-562-0096 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-I-49466/1?

Key specifications for MIL-I-49466/1: Overall Height: 0.002 INCHES NOMINAL IN; Outside Diameter: 1.000 INCHES NOMINAL IN; Inside Diameter: 0.265 INCHES NOMINAL IN; Style Designator: ROUND, FLAT. 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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