PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11739834-2Insulator,washer

Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate · NSN 5970-00-133-3786 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-133-3786 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-133-3786. Primary manufacturer part number: 11739834-2.
Features
  • Insulator,washer — FSC 5970
  • Outside Diameter: 0.797 INCHES MINIMUM AND 0.827 INCHES MAXIMUM IN
  • Inside Diameter: 0.255 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN
  • Criticality Code Justification: FEAT
  • Style Designator: ROUND, FLAT
  • 21 verified cross-references
  • Primary manufacturer: Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Insulator,washer, cataloged under National Stock Number 5970-00-133-3786, 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 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 21 commercial cross-references from 14 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5970-00-133-3786
Primary Part Number11739834-2
Item NameInsulator,washer
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerCombat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
StatusCANCELLED
Outside Diameter0.797 INCHES MINIMUM AND 0.827 INCHES MAXIMUM IN
Inside Diameter0.255 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN
Criticality Code JustificationFEAT
Style DesignatorROUND, FLAT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
5330-00-300-7769 INTERCHANGEABLE
Gasket
5970-00-376-05405611-79-5 INTERCHANGEABLE
Insulator,washer
Seastrom Manufacturing Co Inc
5998-01-171-7859 INTERCHANGEABLE
Printed Circuit Board
5970-01-179-7414 INTERCHANGEABLE
Insulator,washer
5970-01-488-122953-02-25 INTERCHANGEABLE
Thermally Cond Wash
Aero-Glen International Llc
3120-01-508-54312194807 INTERCHANGEABLE
Bearing,sleeve
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5331-01-513-8423430-225 INTERCHANGEABLE
O-Ring
Bombardier Transportation Austria Gmbh
Cross-Reference Index
Part NumberManufacturer
11739834-2 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
43-02-25 Thermalloy Co Inc (USA)
MIL-M-38527/8 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
3180099-23 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
422861-1 Naval Air Warfare Center Aircraft Division Joint Base Jbmdl (USA)
10201-25 IV-Electronic Klaus Vespermann Kg (DEU)
M38527/08-080P Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M38526/1-106 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
LS15298-2 Lockheed Martin Corp (USA)
ST460692-2 Bae Systems Information and Electronic Systems Integration Inc. (USA)
10134085 Nimikkeistokeskus Ncb Finland (FIN)
71502-2 Espey Mfg and Electronics Corp (USA)
M38527/8-80P Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M49466/01-078P Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
43-02-25 IV-Electronic Klaus Vespermann Kg (DEU)
532450-2 Raytheon Company Dba Raytheon (USA)
MIL-I-49466/1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
T511005523 Lockheed Martin Librascope Corporation (USA)
10518-3P Ross Milton Co the (USA)
71502-2 Espey Mfg. & Electronics Corp. (USA)
Related Parts
5330-00-300-7769INTERCHANGEABLE
GASKET
5970-00-376-0540INTERCHANGEABLE
INSULATOR,WASHER
5611-79-5
5998-01-171-7859INTERCHANGEABLE
PRINTED CIRCUIT BOARD
5970-01-179-7414INTERCHANGEABLE
INSULATOR,WASHER
5970-01-488-1229INTERCHANGEABLE
THERMALLY COND WASH
53-02-25
3120-01-508-5431INTERCHANGEABLE
BEARING,SLEEVE
2194807
5331-01-513-8423INTERCHANGEABLE
O-RING
430-225

Frequently Asked Questions

What is NSN 5970-00-133-3786?

NSN 5970-00-133-3786 is a Insulator,washer, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 5970 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5970-00-133-3786?

NSN 5970-00-133-3786 has 21 cross-referenced part numbers: 11739834-2 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 43-02-25 (Thermalloy Co Inc), MIL-M-38527/8 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 3180099-23 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 422861-1 (Naval Air Warfare Center Aircraft Division Joint Base Jbmdl) and 16 more.

What NSN replaces 5970-00-133-3786?

There are 7 known substitutes for 5970-00-133-3786: 5330-00-300-7769, 5970-00-376-0540, 5998-01-171-7859 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11739834-2?

Key specifications for 11739834-2: Overall Height: 0.002 INCHES MINIMUM AND 0.003 INCHES MAXIMUM IN; Outside Diameter: 0.797 INCHES MINIMUM AND 0.827 INCHES MAXIMUM IN; Inside Diameter: 0.255 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN; Criticality Code Justification: FEAT. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5970-00-133-3786 still in active supply?

NSN 5970-00-133-3786 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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