PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T-1-10-1Diffuser,air

Environmental Elements Corp · NSN 4520-01-136-6599 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-01-136-6599 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-136-6599. Primary manufacturer part number: T-1-10-1.
Features
  • Diffuser,air — FSC 4520
  • General Characteristics Item Description: STEEL;ALUMINUM COATED;18.250 IN.DIA;3.625 IN.HT;DUCT SIZE 10.000 IN.DIA IN
  • 2 verified cross-references
  • Primary manufacturer: Environmental Elements Corp
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Diffuser,air, cataloged under National Stock Number 4520-01-136-6599, is classified within Federal Supply Class 4520 (No Item Name Available) of the Plumbing, Heating, and Waste Disposal group. The primary manufacturer of record is Environmental Elements Corp. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4520-01-136-6599
Primary Part NumberT-1-10-1
Item NameDiffuser,air
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerEnvironmental Elements Corp
StatusACTIVE
General Characteristics Item DescriptionSTEEL;ALUMINUM COATED;18.250 IN.DIA;3.625 IN.HT;DUCT SIZE 10.000 IN.DIA IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
2540-00-033-5993 INTERCHANGEABLE
Pintle Assembly,towing
2990-00-214-8171T-1101 INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
Cross-Reference Index
Part NumberManufacturer
T-1-10-1 Environmental Elements Corp (USA)
TMR 10 INCH Environmental Elements Corp (USA)
Related Parts
2540-00-033-5993INTERCHANGEABLE
PINTLE ASSEMBLY,TOWING
2990-00-214-8171INTERCHANGEABLE
MUFFLER,EXHAUST
T-1101

Frequently Asked Questions

What is NSN 4520-01-136-6599?

NSN 4520-01-136-6599 is a Diffuser,air, manufactured by Environmental Elements Corp, classified under FSC 4520 (No Item Name Available). Status: active.

What are the part numbers for NSN 4520-01-136-6599?

NSN 4520-01-136-6599 has 2 cross-referenced part numbers: T-1-10-1 (Environmental Elements Corp), TMR 10 INCH (Environmental Elements Corp).

What NSN replaces 4520-01-136-6599?

There are 2 known substitutes for 4520-01-136-6599: 2540-00-033-5993, 2990-00-214-8171. Verify interchangeability with system specifications before substitution.

What are the specifications of T-1-10-1?

Key specifications for T-1-10-1: General Characteristics Item Description: STEEL;ALUMINUM COATED;18.250 IN.DIA;3.625 IN.HT;DUCT SIZE 10.000 IN.DIA IN. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com