PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2524-10Valve Assembly,lubricating Oil D

Tactair Fluid Controls Inc · NSN 2840-00-923-1939 · FSC 2840 · No Item Name Available
Verified by PartsTable
NSN 2840-00-923-1939 — this item is cataloged by the U.S. Government under National Stock Number 2840-00-923-1939. Primary manufacturer part number: 2524-10.
Features
  • Valve Assembly,lubricating Oil D — FSC 2840
  • General Characteristics Item Description: ALUMINUM ALLOY,QQ-A-225/6,COMP 2024-T4,3 PORTS,0.250 IN. OD,2.220IN. NOM O/A LG,1.920 IN. NOM O/A W,1.500 IN. NOM O/A H,2 MTG HOLES,THD,NO. 8-32,UNC,CLASS 3B THD,TEMP RATING,MINUS 65 DEG F TO PLUS 275 F IN
  • 4 verified cross-references
  • Primary manufacturer: Tactair Fluid Controls Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve Assembly,lubricating Oil D, cataloged under National Stock Number 2840-00-923-1939, is classified within Federal Supply Class 2840 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Tactair Fluid Controls Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, 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
NSN2840-00-923-1939
Primary Part Number2524-10
Item NameValve Assembly,lubricating Oil D
FSC / FSG2840 / 28 — No Item Name Available
ManufacturerTactair Fluid Controls Inc
StatusACTIVE
General Characteristics Item DescriptionALUMINUM ALLOY,QQ-A-225/6,COMP 2024-T4,3 PORTS,0.250 IN. OD,2.220IN. NOM O/A LG,1.920 IN. NOM O/A W,1.500 IN. NOM O/A H,2 MTG HOLES,THD,NO. 8-32,UNC,CLASS 3B THD,TEMP RATING,MINUS 65 DEG F TO PLUS 275 F IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4820-00-189-53711A3001-B-6P-E-C-XXX INTERCHANGEABLE
Valve,safety Relief
Danfoss Fluid Power Inc Easley Opn
7690-01-667-4387 INTERCHANGEABLE
Label
Cross-Reference Index
Part NumberManufacturer
2524-10 Kaiser Fluid Technologies Inc. (USA)
2524-10 Hawker Pacific Aerospace Landing Gear and Components Mfg and Repair (USA)
369A8324 Mcdonnell Douglas Helicopter Co Inc (USA)
2524-10 PRIMARY Tactair Fluid Controls Inc (USA)
Related Parts
4820-00-189-5371INTERCHANGEABLE
VALVE,SAFETY RELIEF
1A3001-B-6P-E-C-XXX
7690-01-667-4387INTERCHANGEABLE
LABEL

Frequently Asked Questions

What is NSN 2840-00-923-1939?

NSN 2840-00-923-1939 is a Valve Assembly,lubricating Oil D, manufactured by Tactair Fluid Controls Inc, classified under FSC 2840 (No Item Name Available). Status: active.

What are the part numbers for NSN 2840-00-923-1939?

NSN 2840-00-923-1939 has 4 cross-referenced part numbers: 2524-10 (Kaiser Fluid Technologies Inc.), 2524-10 (Hawker Pacific Aerospace Landing Gear and Components Mfg and Repair), 369A8324 (Mcdonnell Douglas Helicopter Co Inc), 2524-10 (Tactair Fluid Controls Inc).

What NSN replaces 2840-00-923-1939?

There are 2 known substitutes for 2840-00-923-1939: 4820-00-189-5371, 7690-01-667-4387. Verify interchangeability with system specifications before substitution.

What are the specifications of 2524-10?

Key specifications for 2524-10: General Characteristics Item Description: ALUMINUM ALLOY,QQ-A-225/6,COMP 2024-T4,3 PORTS,0.250 IN. OD,2.220IN. NOM O/A LG,1.920 IN. NOM O/A W,1.500 IN. NOM O/A H,2 MTG HOLES,THD,NO. 8-32,UNC,CLASS 3B THD,TEMP RATING,MINUS 65 DEG F TO PLUS 275 F IN. 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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