PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

820-041Tank Assembly

Doers Associates Llc · NSN 4940-01-261-5135 · FSC 4940 · No Item Name Available
Verified by PartsTable
NSN 4940-01-261-5135 — this item is cataloged by the U.S. Government under National Stock Number 4940-01-261-5135. Primary manufacturer part number: 820-041.
Features
  • Tank Assembly — FSC 4940
  • Test Data Document: 10042-820-041 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
  • 1 verified cross-reference
  • Primary manufacturer: Doers Associates Llc
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Tank Assembly, cataloged under National Stock Number 4940-01-261-5135, is classified within Federal Supply Class 4940 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is Doers Associates Llc. Government technical data includes 1 verified specification, 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4940-01-261-5135
Primary Part Number820-041
Item NameTank Assembly
FSC / FSG4940 / 49 — No Item Name Available
ManufacturerDoers Associates Llc
StatusACTIVE
Test Data Document10042-820-041 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5331-00-213-87228200-14 INTERCHANGEABLE
O-Ring
Aqualung Usa, Inc
1386-01-664-8008820-041 INTERCHANGEABLE
Clamp,breathing Apparatus
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
820-041 PRIMARY Doers Associates Llc (USA)
Related Parts
5331-00-213-8722INTERCHANGEABLE
O-RING
8200-14
1386-01-664-8008INTERCHANGEABLE
CLAMP,BREATHING APPARATUS
820-041

Frequently Asked Questions

What is NSN 4940-01-261-5135?

NSN 4940-01-261-5135 is a Tank Assembly, manufactured by Doers Associates Llc, classified under FSC 4940 (No Item Name Available). Status: active.

What are the part numbers for NSN 4940-01-261-5135?

NSN 4940-01-261-5135 has 1 cross-referenced part number: 820-041 (Doers Associates Llc).

What NSN replaces 4940-01-261-5135?

There are 2 known substitutes for 4940-01-261-5135: 5331-00-213-8722, 1386-01-664-8008. Verify interchangeability with system specifications before substitution.

What are the specifications of 820-041?

Key specifications for 820-041: Test Data Document: 10042-820-041 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING). 1 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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