PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10043943-20Spacer,ring

Aerocontrolex Group, Inc. · NSN 5365-00-531-2343 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-00-531-2343 — this item is cataloged by the U.S. Government under National Stock Number 5365-00-531-2343. Primary manufacturer part number: 10043943-20.
Features
  • Spacer,ring — FSC 5365
  • Material: PLASTIC POLYTETRAFLUOROETHYLENE
  • Overall Thickness: 0.028 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
  • Outside Diameter: 1.121 INCHES MINIMUM AND 1.124 INCHES MAXIMUM IN
  • Inside Diameter: 0.907 INCHES MINIMUM AND 0.910 INCHES MAXIMUM IN
  • 4 verified cross-references
  • Primary manufacturer: Aerocontrolex Group, Inc.
Applications
  • Applications requiring Plastic Polytetrafluoroethylene construction
General Description

The Spacer,ring, cataloged under National Stock Number 5365-00-531-2343, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Aerocontrolex Group, Inc.. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5365-00-531-2343
Primary Part Number10043943-20
Item NameSpacer,ring
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerAerocontrolex Group, Inc.
StatusCANCELLED
MaterialPLASTIC POLYTETRAFLUOROETHYLENE
Overall Thickness0.028 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
Outside Diameter1.121 INCHES MINIMUM AND 1.124 INCHES MAXIMUM IN
Inside Diameter0.907 INCHES MINIMUM AND 0.910 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
3110-00-271-003910043943 INTERCHANGEABLE
Bearing,ball,annular
Aerocontrolex Group, Inc.
4440-00-446-4028101-222 INTERCHANGEABLE
Compressor-Dehydrator,electronic
Aerocontrolex Group, Inc.
4310-00-574-19005205211000 INTERCHANGEABLE
Stop,valve
Aerocontrolex Group, Inc.
4310-00-574-1901204-437 INTERCHANGEABLE
Crankshaft,compressor
Aerocontrolex Group, Inc.
4310-00-574-190210043943-12 INTERCHANGEABLE
Crankshaft,compressor
Us Army Aviation and Missile Command
4310-00-589-384610043943-30 INTERCHANGEABLE
Plate,reed Valve
Us Army Aviation and Missile Command
4310-00-591-2593205-024 INTERCHANGEABLE
Ring,piston
Aerocontrolex Group, Inc.
4730-01-168-1913205182N INTERCHANGEABLE
Tee,pipe to Tube
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
5331-01-201-36163014668 INTERCHANGEABLE
O-Ring
Cummins Inc.
4010-01-341-696020518-2 INTERCHANGEABLE
Wire Rope Assembly,single Leg
United States Department of the Navy Dba Naval Surface Warfare Center Panama City
Cross-Reference Index
Part NumberManufacturer
10043943 Us Army Aviation and Missile Command (USA)
205-182 Aerocontrolex Group, Inc. (USA)
10043943-20 Us Army Aviation and Missile Command (USA)
10043943-20 PRIMARY Aerocontrolex Group, Inc. (USA)
Related Parts
3110-00-271-0039INTERCHANGEABLE
BEARING,BALL,ANNULAR
10043943
4440-00-446-4028INTERCHANGEABLE
COMPRESSOR-DEHYDRATOR,ELECTRONIC
101-222
4310-00-574-1900INTERCHANGEABLE
STOP,VALVE
5205211000
4310-00-574-1901INTERCHANGEABLE
CRANKSHAFT,COMPRESSOR
204-437
4310-00-574-1902INTERCHANGEABLE
CRANKSHAFT,COMPRESSOR
10043943-12
4310-00-589-3846INTERCHANGEABLE
PLATE,REED VALVE
10043943-30
4310-00-591-2593INTERCHANGEABLE
RING,PISTON
205-024
4730-01-168-1913INTERCHANGEABLE
TEE,PIPE TO TUBE
205182N
5331-01-201-3616INTERCHANGEABLE
O-RING
3014668
4010-01-341-6960INTERCHANGEABLE
WIRE ROPE ASSEMBLY,SINGLE LEG
20518-2
5975-01-584-7825INTERCHANGEABLE
STRAP,TIE DOWN,ELECTRICAL COMPON
205182

Frequently Asked Questions

What is NSN 5365-00-531-2343?

NSN 5365-00-531-2343 is a Spacer,ring, manufactured by Aerocontrolex Group, Inc., classified under FSC 5365 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5365-00-531-2343?

NSN 5365-00-531-2343 has 4 cross-referenced part numbers: 10043943 (Us Army Aviation and Missile Command), 205-182 (Aerocontrolex Group, Inc.), 10043943-20 (Us Army Aviation and Missile Command), 10043943-20 (Aerocontrolex Group, Inc.).

What NSN replaces 5365-00-531-2343?

There are 11 known substitutes for 5365-00-531-2343: 3110-00-271-0039, 4440-00-446-4028, 4310-00-574-1900 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10043943-20?

Key specifications for 10043943-20: Material: PLASTIC POLYTETRAFLUOROETHYLENE; Overall Thickness: 0.028 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN; Outside Diameter: 1.121 INCHES MINIMUM AND 1.124 INCHES MAXIMUM IN; Inside Diameter: 0.907 INCHES MINIMUM AND 0.910 INCHES MAXIMUM IN. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5365-00-531-2343 still in active supply?

NSN 5365-00-531-2343 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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