PartsTable TECHNICAL DATA SHEET
AUGUST 2026Technical Data Sheet

C135669-1Spacer,sleeve

Lockheed Martin Sippican, Inc. Div Communication Division · NSN 5365-01-158-2104 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-01-158-2104 — this item is cataloged by the U.S. Government under National Stock Number 5365-01-158-2104. Primary manufacturer part number: C135669-1.
Features
  • Spacer,sleeve — FSC 5365
  • Corner Shape: SQUARE ALL CORNERS
  • Body Inside Diameter: 1.8125 INCHES MINIMUM AND 1.8141 INCHES MAXIMUM IN
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Material: NICKEL ALLOY OVERALL
  • Material Document and Classification: QQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Body Outside Diameter: 2.9950 INCHES MINIMUM AND 2.9970 INCHES MAXIMUM IN
  • 1 verified cross-reference
Applications
  • Applications requiring Nickel Alloy Overall construction
General Description

The Spacer,sleeve, cataloged under National Stock Number 5365-01-158-2104, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lockheed Martin Sippican, Inc. Div Communication Division. Government technical data includes 6 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. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5365-01-158-2104
Primary Part NumberC135669-1
Item NameSpacer,sleeve
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerLockheed Martin Sippican, Inc. Div Communication Division
StatusACTIVE
Corner ShapeSQUARE ALL CORNERS
Body Inside Diameter1.8125 INCHES MINIMUM AND 1.8141 INCHES MAXIMUM IN
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
MaterialNICKEL ALLOY OVERALL
Material Document and ClassificationQQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Body Outside Diameter2.9950 INCHES MINIMUM AND 2.9970 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Cross-Reference Index
Part NumberManufacturer
C135669-1 PRIMARY Lockheed Martin Sippican, Inc. Div Communication Division (USA)
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Frequently Asked Questions

What is NSN 5365-01-158-2104?

NSN 5365-01-158-2104 is a Spacer,sleeve, manufactured by Lockheed Martin Sippican, Inc. Div Communication Division, classified under FSC 5365 (No Item Name Available). Status: active.

What are the part numbers for NSN 5365-01-158-2104?

NSN 5365-01-158-2104 has 1 cross-referenced part number: C135669-1 (Lockheed Martin Sippican, Inc. Div Communication Division).

What are the specifications of C135669-1?

Key specifications for C135669-1: Corner Shape: SQUARE ALL CORNERS; Overall Length: 4.8600 INCHES MINIMUM AND 4.8700 INCHES MAXIMUM IN; Special Features: KEYWAY 0.3770 IN. MIN AND 0.3790 IN. MAX DIA AND FOUR HOLES 0.1870 IN. MAX DIA IN; Body Inside Diameter: 1.8125 INCHES MINIMUM AND 1.8141 INCHES MAXIMUM IN. 8 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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