PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25FB3-5111Thermometer,indicating,capillary

Weiss Instruments, Inc. · NSN 6685-00-683-9410 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-683-9410 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-683-9410. Primary manufacturer part number: 25FB3-5111.
Features
  • Thermometer,indicating,capillary — FSC 6685
  • Style Designator: BULB W/O SOCKET
  • Active Portion Diameter: 0.438 INCHES NOMINAL IN
  • Flexible Tube Length: 72.000 INCHES NOMINAL IN
  • Actuating Medium: VAPOR TENSION
  • Active Portion Length: 3.500 INCHES NOMINAL IN
  • Bulb Quantity: 1
  • Bulb Style: PLAIN BULB W/BENDABLE EXTENSION
Applications
  • Applications requiring Brass Bulb construction
General Description

The Thermometer,indicating,capillary, cataloged under National Stock Number 6685-00-683-9410, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Weiss Instruments, Inc.. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-683-9410
Primary Part Number25FB3-5111
Item NameThermometer,indicating,capillary
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerWeiss Instruments, Inc.
StatusACTIVE
Style DesignatorBULB W/O SOCKET
Active Portion Diameter0.438 INCHES NOMINAL IN
Flexible Tube Length72.000 INCHES NOMINAL IN
Actuating MediumVAPOR TENSION
Active Portion Length3.500 INCHES NOMINAL IN
Bulb Quantity1
Bulb StylePLAIN BULB W/BENDABLE EXTENSION
Indicator Connection MethodFLEXIBLE TUBE
Scale Measurement Range-40.000 TO 120.000 DEG FAHRENHEIT
Bulb Connection TypeUNION
Pointer/pen Type and Quantity1 INDICATING SINGLE
Bulb TypeFLEXIBLE CAPILLARY
MaterialBRASS BULB
MaterialSTEEL METER CASE
Case Diameter3.469 INCHES NOMINAL IN
Bulb Tip Length3.500 INCHES NOMINAL IN
Scale TypeCONCENTRIC DIAL
Dial Diameter2.500 INCHES NOMINAL IN
Case TypeVAPORPROOF
Scale Inscription/background ColorBLACK MARKING ON WHITE BACKGROUND
Scale Smallest Increment2.0 DEG FAHRENHEIT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5950-00-188-8802 INTERCHANGEABLE
Transformer,radio Frequency
5977-00-224-4319SC-D-61023-2 INTERCHANGEABLE
Brush,electrical Contact
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5330-00-247-4226 INTERCHANGEABLE
Gasket
5340-00-326-3442S1620-61708-2 INTERCHANGEABLE
Leaf,butt Hinge
Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
4320-00-852-903652161R91 INTERCHANGEABLE
Pump,inflating,manual
Navistar Intl Corp Truck Br Ohio Plant
7310-01-226-21762357 INTERCHANGEABLE
Control,burner
Peerless-Premier Appliance Co
5330-01-330-2211772357 INTERCHANGEABLE
Gasket Set
Deutz Corporation
6515-01-568-52292357 INTERCHANGEABLE
System Buffer,lactate Analyzer
Ysi Inc
Cross-Reference Index
Part NumberManufacturer
X-5 Bellofram Corporation (USA)
X5 Liftec Inc Div Liftec, Inc. (USA)
25FB1-5111 Weiss Instruments, Inc. (USA)
FIG93 Liftec Inc Div Liftec, Inc. (USA)
58A2952 Chase Industries, Inc. Dba Chase Doors Div Chase Doors (USA)
2357 Alter Harry Co the Div of T E C (USA)
25FB3-5111 PRIMARY Weiss Instruments, Inc. (USA)
25F1-511 Weiss Instruments, Inc. (USA)
Related Parts
5950-00-188-8802INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
5977-00-224-4319INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
SC-D-61023-2
5330-00-247-4226INTERCHANGEABLE
GASKET
5340-00-326-3442INTERCHANGEABLE
LEAF,BUTT HINGE
S1620-61708-2
4320-00-852-9036INTERCHANGEABLE
PUMP,INFLATING,MANUAL
52161R91
7310-01-226-2176INTERCHANGEABLE
CONTROL,BURNER
2357
5330-01-330-2211INTERCHANGEABLE
GASKET SET
772357
6515-01-568-5229INTERCHANGEABLE
SYSTEM BUFFER,LACTATE ANALYZER
2357

Frequently Asked Questions

What is NSN 6685-00-683-9410?

NSN 6685-00-683-9410 is a Thermometer,indicating,capillary, manufactured by Weiss Instruments, Inc., classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-683-9410?

NSN 6685-00-683-9410 has 8 cross-referenced part numbers: X-5 (Bellofram Corporation), X5 (Liftec Inc Div Liftec, Inc.), 25FB1-5111 (Weiss Instruments, Inc.), FIG93 (Liftec Inc Div Liftec, Inc.), 58A2952 (Chase Industries, Inc. Dba Chase Doors Div Chase Doors) and 3 more.

What NSN replaces 6685-00-683-9410?

There are 8 known substitutes for 6685-00-683-9410: 5950-00-188-8802, 5977-00-224-4319, 5330-00-247-4226 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25FB3-5111?

Key specifications for 25FB3-5111: Style Designator: BULB W/O SOCKET; Active Portion Diameter: 0.438 INCHES NOMINAL IN; Flexible Tube Length: 72.000 INCHES NOMINAL IN; Actuating Medium: VAPOR TENSION. 21 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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