PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21234Spacer,sleeve

Eaton Aerospace Llc · NSN 5365-00-202-1671 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-00-202-1671 — this item is cataloged by the U.S. Government under National Stock Number 5365-00-202-1671. Primary manufacturer part number: 21234.
Features
  • Spacer,sleeve — FSC 5365
  • Material: STEEL COMP 416 OVERALL
  • Hardness Rating: 25.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
  • Body Outside Diameter: 0.6500 INCHES MINIMUM AND 0.6610 INCHES MAXIMUM IN
  • Body Inside Diameter: 0.5880 INCHES MINIMUM AND 0.5980 INCHES MAXIMUM IN
  • Surface Treatment: PASSIVATE OVERALL
  • Style Designator: SOLID, EXTERNAL FLANGES BOTH ENDS
  • Corner Shape: SQUARE ALL CORNERS
Applications
  • Applications requiring Steel Comp 416 Overall construction
General Description

The Spacer,sleeve, cataloged under National Stock Number 5365-00-202-1671, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Eaton Aerospace Llc. Government technical data includes 10 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5365-00-202-1671
Primary Part Number21234
Item NameSpacer,sleeve
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerEaton Aerospace Llc
StatusACTIVE
MaterialSTEEL COMP 416 OVERALL
Hardness Rating25.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
Body Outside Diameter0.6500 INCHES MINIMUM AND 0.6610 INCHES MAXIMUM IN
Body Inside Diameter0.5880 INCHES MINIMUM AND 0.5980 INCHES MAXIMUM IN
Surface TreatmentPASSIVATE OVERALL
Style DesignatorSOLID, EXTERNAL FLANGES BOTH ENDS
Corner ShapeSQUARE ALL CORNERS
Flange Width0.0380 INCHES MINIMUM AND 0.0430 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5110-00-186-6693 INTERCHANGEABLE
Reamer,hand
5330-00-286-7059 INTERCHANGEABLE
Seal,plain Encased
6685-00-487-461347B50 INTERCHANGEABLE
Indicator,temperature,electrical
Horizon Aerospace Llc Dba Magnetics Division
5310-00-550-436922ND16-02 INTERCHANGEABLE
Nut,self-Locking,spline
Esna, Llc
3120-00-575-589721-234 INTERCHANGEABLE
Bearing Half,sleeve
Dresser Industries Inc Waukesha Engine Div
5330-00-591-270921234 INTERCHANGEABLE
Packing,preformed
Industrial Technologies and Services Llc
6685-01-377-6378 INTERCHANGEABLE
Gage,pressure,dial Indicating
4820-01-418-707721234-1010-2 INTERCHANGEABLE
Flange,gland,valve
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4820-01-422-026821234-001 INTERCHANGEABLE
Valve,linear,directional Control
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4820-01-422-027121234-1010-1 INTERCHANGEABLE
Flange,gland,valve
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Cross-Reference Index
Part NumberManufacturer
21234 PRIMARY Eaton Aerospace Llc (USA)
Related Parts
5110-00-186-6693INTERCHANGEABLE
REAMER,HAND
5330-00-286-7059INTERCHANGEABLE
SEAL,PLAIN ENCASED
6685-00-487-4613INTERCHANGEABLE
INDICATOR,TEMPERATURE,ELECTRICAL
47B50
5310-00-550-4369INTERCHANGEABLE
NUT,SELF-LOCKING,SPLINE
22ND16-02
3120-00-575-5897INTERCHANGEABLE
BEARING HALF,SLEEVE
21-234
5330-00-591-2709INTERCHANGEABLE
PACKING,PREFORMED
21234
6685-01-377-6378INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
4820-01-418-7077INTERCHANGEABLE
FLANGE,GLAND,VALVE
21234-1010-2
4820-01-422-0268INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
21234-001
4820-01-422-0271INTERCHANGEABLE
FLANGE,GLAND,VALVE
21234-1010-1
4820-01-422-0272INTERCHANGEABLE
STEM,NEEDLE VALVE
21234-1009-1
4820-01-422-0294INTERCHANGEABLE
SLEEVE AND SLIDE,DIRECTIONAL CON
21234-850-1

Frequently Asked Questions

What is NSN 5365-00-202-1671?

NSN 5365-00-202-1671 is a Spacer,sleeve, manufactured by Eaton Aerospace Llc, classified under FSC 5365 (No Item Name Available). Status: active.

What are the part numbers for NSN 5365-00-202-1671?

NSN 5365-00-202-1671 has 1 cross-referenced part number: 21234 (Eaton Aerospace Llc).

What NSN replaces 5365-00-202-1671?

There are 12 known substitutes for 5365-00-202-1671: 5110-00-186-6693, 5330-00-286-7059, 6685-00-487-4613 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21234?

Key specifications for 21234: Material: STEEL COMP 416 OVERALL; Hardness Rating: 25.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL; Body Outside Diameter: 0.6500 INCHES MINIMUM AND 0.6610 INCHES MAXIMUM IN; Body Inside Diameter: 0.5880 INCHES MINIMUM AND 0.5980 INCHES MAXIMUM IN. 11 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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