PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

23040Psychrometer

H-B Instrument Co · NSN 6685-00-276-1308 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-276-1308 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-276-1308. Primary manufacturer part number: 23040.
Features
  • Psychrometer — FSC 6685
  • Engraved Thermometer Stem: INCLUDED
  • Mounting Shelter: NOT INCLUDED
  • Calibration Accuracy Rating: PORM 0.5 DEG FROM EITHER SIDE OF RANGE,DEG F
  • Magnifying Lens: NOT INCLUDED
  • Circulation Method: HAND SLING
  • Mounting Method: FRAME THERMOMETER
  • Circulation Type: FORCED
Applications
  • Applications requiring Leather Carrying Case construction
General Description

The Psychrometer, cataloged under National Stock Number 6685-00-276-1308, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is H-B Instrument Co. Government technical data includes 17 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-276-1308
Primary Part Number23040
Item NamePsychrometer
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerH-B Instrument Co
StatusCANCELLED
Engraved Thermometer StemINCLUDED
Mounting ShelterNOT INCLUDED
Calibration Accuracy RatingPORM 0.5 DEG FROM EITHER SIDE OF RANGE,DEG F
Magnifying LensNOT INCLUDED
Circulation MethodHAND SLING
Mounting MethodFRAME THERMOMETER
Circulation TypeFORCED
Thermometer Filling TypeMERCURY
Sling HandleINCLUDED
Mounting Panel TablesNOT PROVIDED
Operating Temp Range+10.0 TO 110.0 FAHRENHEIT DEGF
Graduation Interval0.5 DEG
MaterialLEATHER CARRYING CASE
Accessory Components and QuantityBOTTLE W/DROPPER 1,US WEATHER BUREAU PSYCHROMETRIC TABLES NO. 235 1,WICKING 1 US
Handle TypeSWIVEL
Thermometer Quantity2
MaterialALUMINUM THERMOMETER MOUNTING
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
4320-00-104-202723040 INTERCHANGEABLE
Valve Flapper,pump
Industrial Technologies and Services Llc
1680-00-476-008723040 INTERCHANGEABLE
Handla and Knob Ass
B E Aerospace Inc Services Div
3455-00-812-3584 INTERCHANGEABLE
Cutter,milling,end
3110-00-876-4387 INTERCHANGEABLE
Bearing,roller,self-Aligning
2530-01-047-9566NW23040 INTERCHANGEABLE
Parts Kit,hydraulic Brake Wheel
Tld Wollard Llc
5133-01-382-437523040 INTERCHANGEABLE
Cutter,hole Forming,drive Shank
Keo Cutters Div of Masco Corp
Cross-Reference Index
Part NumberManufacturer
1330 Abb Kent-Taylor Inc (USA)
23040 PRIMARY H-B Instrument Co (USA)
Related Parts
4320-00-104-2027INTERCHANGEABLE
VALVE FLAPPER,PUMP
23040
1680-00-476-0087INTERCHANGEABLE
HANDLA AND KNOB ASS
23040
3455-00-812-3584INTERCHANGEABLE
CUTTER,MILLING,END
3110-00-876-4387INTERCHANGEABLE
BEARING,ROLLER,SELF-ALIGNING
2530-01-047-9566INTERCHANGEABLE
PARTS KIT,HYDRAULIC BRAKE WHEEL
NW23040
5133-01-382-4375INTERCHANGEABLE
CUTTER,HOLE FORMING,DRIVE SHANK
23040

Frequently Asked Questions

What is NSN 6685-00-276-1308?

NSN 6685-00-276-1308 is a Psychrometer, manufactured by H-B Instrument Co, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-276-1308?

NSN 6685-00-276-1308 has 2 cross-referenced part numbers: 1330 (Abb Kent-Taylor Inc), 23040 (H-B Instrument Co).

What NSN replaces 6685-00-276-1308?

There are 6 known substitutes for 6685-00-276-1308: 4320-00-104-2027, 1680-00-476-0087, 3455-00-812-3584 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 23040?

Key specifications for 23040: Engraved Thermometer Stem: INCLUDED; Mounting Shelter: NOT INCLUDED; Calibration Accuracy Rating: PORM 0.5 DEG FROM EITHER SIDE OF RANGE,DEG F; Magnifying Lens: NOT INCLUDED. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-276-1308 still in active supply?

NSN 6685-00-276-1308 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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