PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

43539Spacer,piston

Triumph Engine Control Systems Llc · NSN 5365-00-671-7883 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-00-671-7883 — this item is cataloged by the U.S. Government under National Stock Number 5365-00-671-7883. Primary manufacturer part number: 43539.
Features
  • Spacer,piston — FSC 5365
  • General Characteristics Item Description: ALUMINUM ALLOY PER AMS4120,ANODIZE PER AMS2470,0.122 IN. MIN,0.128 IN. MAX LG,0.780 IN. MIN,0.786 IN. MAX OD,0.495 IN. MIN,0.505 IN. MAX ID IN
  • 3 verified cross-references
  • Primary manufacturer: Triumph Engine Control Systems Llc
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Spacer,piston, cataloged under National Stock Number 5365-00-671-7883, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Triumph Engine Control Systems Llc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5365-00-671-7883
Primary Part Number43539
Item NameSpacer,piston
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerTriumph Engine Control Systems Llc
StatusACTIVE
General Characteristics Item DescriptionALUMINUM ALLOY PER AMS4120,ANODIZE PER AMS2470,0.122 IN. MIN,0.128 IN. MAX LG,0.780 IN. MIN,0.786 IN. MAX OD,0.495 IN. MIN,0.505 IN. MAX ID IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5950-00-627-9546C311-414 INTERCHANGEABLE
Transformer,radio Frequency
Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp
5970-01-278-123343539 INTERCHANGEABLE
Insulator,disk
National Oilwell Varco Inc Dba National Oilwell
5975-01-319-625543539 INTERCHANGEABLE
Adapter,electrical Conduit
L3harris Technologies, Inc Div Space & Airborne Systems
5120-01-398-7695 INTERCHANGEABLE
Extension,socket Wrench
5310-01-422-1752 INTERCHANGEABLE
Nut,plain,hexagon
Cross-Reference Index
Part NumberManufacturer
43539 Transupport Inc Dba Transupport Inc (USA)
43539 Goodrich Control Systems Gmbh (DEU)
43539 PRIMARY Triumph Engine Control Systems Llc (USA)
Related Parts
5950-00-627-9546INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
C311-414
5970-01-278-1233INTERCHANGEABLE
INSULATOR,DISK
43539
5975-01-319-6255INTERCHANGEABLE
ADAPTER,ELECTRICAL CONDUIT
43539
5120-01-398-7695INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
5310-01-422-1752INTERCHANGEABLE
NUT,PLAIN,HEXAGON

Frequently Asked Questions

What is NSN 5365-00-671-7883?

NSN 5365-00-671-7883 is a Spacer,piston, manufactured by Triumph Engine Control Systems Llc, classified under FSC 5365 (No Item Name Available). Status: active.

What are the part numbers for NSN 5365-00-671-7883?

NSN 5365-00-671-7883 has 3 cross-referenced part numbers: 43539 (Transupport Inc Dba Transupport Inc), 43539 (Goodrich Control Systems Gmbh), 43539 (Triumph Engine Control Systems Llc).

What NSN replaces 5365-00-671-7883?

There are 5 known substitutes for 5365-00-671-7883: 5950-00-627-9546, 5970-01-278-1233, 5975-01-319-6255 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 43539?

Key specifications for 43539: General Characteristics Item Description: ALUMINUM ALLOY PER AMS4120,ANODIZE PER AMS2470,0.122 IN. MIN,0.128 IN. MAX LG,0.780 IN. MIN,0.786 IN. MAX OD,0.495 IN. MIN,0.505 IN. MAX ID IN; End Item Identification: T53 MFR 2915-01-216-9779. 2 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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