PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10AA25FFManometer,u-Tube

Scott Fetzer Company, the Dba Meriam Process Technologies Div Meriam Instrument · NSN 6685-00-841-5158 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-841-5158 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-841-5158. Primary manufacturer part number: 10AA25FF.
Features
  • Manometer,u-Tube — FSC 6685
  • Connection Facility Type: INTERNAL
  • Receptacle Type: EXPANSION CHAMBER
  • Indicator Type: ONE LIQUID
  • Operating Pressure: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
  • Connection Location: UPPER LEFT SIDE AND UPPER RIGHT HAND SIDE
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY SPECIAL FEATURES
  • Thread Size and Series/type Designator: 1/4 NPT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Manometer,u-Tube, cataloged under National Stock Number 6685-00-841-5158, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Scott Fetzer Company, the Dba Meriam Process Technologies Div Meriam Instrument. Government technical data includes 16 verified specifications, 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
NSN6685-00-841-5158
Primary Part Number10AA25FF
Item NameManometer,u-Tube
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerScott Fetzer Company, the Dba Meriam Process Technologies Div Meriam Instrument
StatusACTIVE
Connection Facility TypeINTERNAL
Receptacle TypeEXPANSION CHAMBER
Indicator TypeONE LIQUID
Operating Pressure250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
Connection LocationUPPER LEFT SIDE AND UPPER RIGHT HAND SIDE
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY SPECIAL FEATURES
Thread Size and Series/type Designator1/4 NPT
Zero AdjusterNOT PROVIDED
Mounting Provision for Which DesignedFLUSH PANEL
Connection TypeTHREADED
Indicating LiquidNOT PROVIDED
Control ValveNOT PROVIDED
Equalizing ValveNOT PROVIDED
Scale Range+0.0 TO 30.0 INCHES IN
Scale Smallest Increment0.1 INCHES IN
Parallax Eliminating FeatureNOT PROVIDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6685-00-517-7132 INTERCHANGEABLE
Manometer,u-Tube
6685-00-921-104010238 INTERCHANGEABLE
Manometer,u-Tube
Celtech Corporation Div Use CAGE 65552 for All Orders
Cross-Reference Index
Part NumberManufacturer
10AA25FF Scott Fetzer Company, the Dba Meriam Process Technologies Div Meriam Instrument (USA)
B2249 Scott Fetzer Company, the Dba Meriam Process Technologies Div Meriam Instrument (USA)
Related Parts
6685-00-517-7132INTERCHANGEABLE
MANOMETER,U-TUBE
6685-00-921-1040INTERCHANGEABLE
MANOMETER,U-TUBE
10238

Frequently Asked Questions

What is NSN 6685-00-841-5158?

NSN 6685-00-841-5158 is a Manometer,u-Tube, manufactured by Scott Fetzer Company, the Dba Meriam Process Technologies Div Meriam Instrument, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-841-5158?

NSN 6685-00-841-5158 has 2 cross-referenced part numbers: 10AA25FF (Scott Fetzer Company, the Dba Meriam Process Technologies Div Meriam Instrument), B2249 (Scott Fetzer Company, the Dba Meriam Process Technologies Div Meriam Instrument).

What NSN replaces 6685-00-841-5158?

There are 2 known substitutes for 6685-00-841-5158: 6685-00-517-7132, 6685-00-921-1040. Verify interchangeability with system specifications before substitution.

What are the specifications of 10AA25FF?

Key specifications for 10AA25FF: Connection Facility Type: INTERNAL; Receptacle Type: EXPANSION CHAMBER; Indicator Type: ONE LIQUID; Special Features: WETTED PART AND HEAD FABRICATED OF NO. 303 STAINLESS STEEL. 17 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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