PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILS12165Strainer,suction

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4210-00-240-5531 · FSC 4210 · No Item Name Available
Verified by PartsTable
NSN 4210-00-240-5531 — this item is cataloged by the U.S. Government under National Stock Number 4210-00-240-5531. Primary manufacturer part number: MILS12165.
Features
  • Strainer,suction — FSC 4210
  • Body Outside Diameter: 5.875 INCHES NOMINAL IN
  • Mounting Type: OUTLET CONNECTION LINE
  • Specification/standard Data: 81349-MIL-S-12165 GOVERNMENT SPECIFICATION
  • Nondefinitive Spec/std Data: I TYPE AND 4-1/2 SIZE
  • Body Length: 10.000 INCHES MINIMUM IN
  • Filtering Element Quantity: 1
  • Material: COPPER ALLOY BODY
Applications
  • Applications requiring Copper Alloy Body construction
General Description

The Strainer,suction, cataloged under National Stock Number 4210-00-240-5531, is classified within Federal Supply Class 4210 (No Item Name Available) of the Fire Fighting, Rescue, and Safety Equipment group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4210-00-240-5531
Primary Part NumberMILS12165
Item NameStrainer,suction
FSC / FSG4210 / 42 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Body Outside Diameter5.875 INCHES NOMINAL IN
Mounting TypeOUTLET CONNECTION LINE
Specification/standard Data81349-MIL-S-12165 GOVERNMENT SPECIFICATION
Nondefinitive Spec/std DataI TYPE AND 4-1/2 SIZE
Body Length10.000 INCHES MINIMUM IN
Filtering Element Quantity1
MaterialCOPPER ALLOY BODY
Style DesignatorSUCTION TYPE ROUNDED END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4210-00-202-9174 INTERCHANGEABLE
Strainer,suction
4210-00-240-5530 INTERCHANGEABLE
Strainer,suction
4210-00-551-2989 INTERCHANGEABLE
Strainer,suction
5930-01-345-2547 INTERCHANGEABLE
Switch,toggle
4730-01-438-7250 INTERCHANGEABLE
Strainer,suction
5930-01-464-2555 INTERCHANGEABLE
Switch,push
Cross-Reference Index
Part NumberManufacturer
MILS12165 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-12165 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M12165-06 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M12165-06B Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
340-4-1/2 Akron Brass Company (USA)
Related Parts
4210-00-202-9174INTERCHANGEABLE
STRAINER,SUCTION
4210-00-240-5530INTERCHANGEABLE
STRAINER,SUCTION
4210-00-551-2989INTERCHANGEABLE
STRAINER,SUCTION
5930-01-345-2547INTERCHANGEABLE
SWITCH,TOGGLE
4730-01-438-7250INTERCHANGEABLE
STRAINER,SUCTION
5930-01-464-2555INTERCHANGEABLE
SWITCH,PUSH

Frequently Asked Questions

What is NSN 4210-00-240-5531?

NSN 4210-00-240-5531 is a Strainer,suction, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4210 (No Item Name Available). Status: active.

What are the part numbers for NSN 4210-00-240-5531?

NSN 4210-00-240-5531 has 5 cross-referenced part numbers: MILS12165 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-12165 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M12165-06 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M12165-06B (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 340-4-1/2 (Akron Brass Company).

What NSN replaces 4210-00-240-5531?

There are 6 known substitutes for 4210-00-240-5531: 4210-00-202-9174, 4210-00-240-5530, 4210-00-551-2989 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILS12165?

Key specifications for MILS12165: Body Outside Diameter: 5.875 INCHES NOMINAL IN; Mounting Type: OUTLET CONNECTION LINE; Specification/standard Data: 81349-MIL-S-12165 GOVERNMENT SPECIFICATION; Nondefinitive Spec/std Data: I TYPE AND 4-1/2 SIZE. 8 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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