PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

23681Fitting,adapter

Williams International Co., L.l.c. · NSN 2840-01-126-7650 · FSC 2840 · No Item Name Available
Verified by PartsTable
NSN 2840-01-126-7650 — this item is cataloged by the U.S. Government under National Stock Number 2840-01-126-7650. Primary manufacturer part number: 23681.
Features
  • Fitting,adapter — FSC 2840
  • Material: STEEL
  • Criticality Code Justification: MATT AND ABHP AND AGAV
  • 2 verified cross-references
  • Primary manufacturer: Williams International Co., L.l.c.
Applications
  • Applications requiring Steel construction
General Description

The Fitting,adapter, cataloged under National Stock Number 2840-01-126-7650, is classified within Federal Supply Class 2840 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Williams International Co., L.l.c.. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2840-01-126-7650
Primary Part Number23681
Item NameFitting,adapter
FSC / FSG2840 / 28 — No Item Name Available
ManufacturerWilliams International Co., L.l.c.
StatusACTIVE
MaterialSTEEL
Criticality Code JustificationMATT AND ABHP AND AGAV
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5330-00-361-70511CC61 INTERCHANGEABLE
Gasket
Oshkosh Defense Llc
1650-00-390-403323681 INTERCHANGEABLE
Filter,fluid
Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div
5845-00-521-678523681 INTERCHANGEABLE
Guide Assy
L3harris Technologies, Inc. Div Space and Airborne Systems
2990-00-838-9303T-7757 INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
5340-00-985-6690900729-3 INTERCHANGEABLE
Clamp,loop
Danfoss Power Solutions II, Llc
4925-01-219-0928 INTERCHANGEABLE
Cable,external
6515-01-595-923318194 INTERCHANGEABLE
Bag,ostomy
Hollister Inc
Cross-Reference Index
Part NumberManufacturer
23681 PRIMARY Williams International Co., L.l.c. (USA)
23681 Mainstream Engineering Corp (USA)
Related Parts
5330-00-361-7051INTERCHANGEABLE
GASKET
1CC61
1650-00-390-4033INTERCHANGEABLE
FILTER,FLUID
23681
5845-00-521-6785INTERCHANGEABLE
GUIDE ASSY
23681
2990-00-838-9303INTERCHANGEABLE
MUFFLER,EXHAUST
T-7757
5340-00-985-6690INTERCHANGEABLE
CLAMP,LOOP
900729-3
4925-01-219-0928INTERCHANGEABLE
CABLE,EXTERNAL
6515-01-595-9233INTERCHANGEABLE
BAG,OSTOMY
18194

Frequently Asked Questions

What is NSN 2840-01-126-7650?

NSN 2840-01-126-7650 is a Fitting,adapter, manufactured by Williams International Co., L.l.c., classified under FSC 2840 (No Item Name Available). Status: active.

What are the part numbers for NSN 2840-01-126-7650?

NSN 2840-01-126-7650 has 2 cross-referenced part numbers: 23681 (Williams International Co., L.l.c.), 23681 (Mainstream Engineering Corp).

What NSN replaces 2840-01-126-7650?

There are 7 known substitutes for 2840-01-126-7650: 5330-00-361-7051, 1650-00-390-4033, 5845-00-521-6785 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 23681?

Key specifications for 23681: Material: STEEL; Criticality Code Justification: MATT AND ABHP AND AGAV; Overall Length: 2.670 INCHES NOMINAL IN; End Item Identification: ACFT ENG F107. 4 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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