PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

156X11PPyrometer,indicating

Honeywell Inc Process Control Div · NSN 6685-00-458-4737 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-458-4737 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-458-4737. Primary manufacturer part number: 156X11P.
Features
  • Pyrometer,indicating — FSC 6685
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY MEASUREMENT TYPE,SCALE TYPE,SCALE RANGE,SCALE ACCURACY,SCALE CALIBRATION,SCALE SMALLEST INCREMENT,SCALE LENGTH,INDICATING POINT TYPE
  • Material: STEEL METER CASE
  • Scale Type: DRUM
  • Scale Accuracy Rating: PORM 0.2 PCT SCALE RANGE
  • Scale Calibration: CALIBRATED TO COPPER CONSTANTAN THERMOCOUPLE
  • Scale Smallest Increment: 0.5 DEG CELSIUS
  • Pointer/pen Type and Quantity: 1 INDICATING SINGLE
Applications
  • Applications requiring Steel Meter Case construction
General Description

The Pyrometer,indicating, cataloged under National Stock Number 6685-00-458-4737, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Honeywell Inc Process Control Div. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 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
NSN6685-00-458-4737
Primary Part Number156X11P
Item NamePyrometer,indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerHoneywell Inc Process Control Div
StatusACTIVE
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY MEASUREMENT TYPE,SCALE TYPE,SCALE RANGE,SCALE ACCURACY,SCALE CALIBRATION,SCALE SMALLEST INCREMENT,SCALE LENGTH,INDICATING POINT TYPE
MaterialSTEEL METER CASE
Scale TypeDRUM
Scale Accuracy RatingPORM 0.2 PCT SCALE RANGE
Scale CalibrationCALIBRATED TO COPPER CONSTANTAN THERMOCOUPLE
Scale Smallest Increment0.5 DEG CELSIUS
Pointer/pen Type and Quantity1 INDICATING SINGLE
Measurement TypePOTENTIOMETER CIRCUIT
Case TypeDUSTPROOF AND MOISTURE PROOF
Scale Length28.625 INCHES NOMINAL IN
Scale Measurement Range+0.000 TO 200.000 DEG CELSIUS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5110-00-062-0882730BB-2 INTERCHANGEABLE
Punch and Die,knockout
Greenlee Textron Inc.
5133-00-189-9281 INTERCHANGEABLE
Drill,twist
4820-00-343-604120676 INTERCHANGEABLE
Seat,valve
Schneider Electric Systems Usa Inc
3455-00-516-504219839 INTERCHANGEABLE
Reamer,machine
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
5365-00-741-986762B21728 INTERCHANGEABLE
Ring,clamp
Air Force Lifecycle Management Center Electronic Components (aflcmc/ezss)
5305-01-370-695708024 INTERCHANGEABLE
Screw,shoulder
H-K Connecticut Holding Company
6850-01-428-3583C3906A INTERCHANGEABLE
Toner,indirect Electrostatic Pro
Hewlett-Packard Company Dba HP
4010-01-478-2412 INTERCHANGEABLE
Chain,welded
Cross-Reference Index
Part NumberManufacturer
156X11P Honeywell Inc Process Control Div (USA)
20676 Hamilton Sundstrand Corporation (USA)
15501836 Honeywell Inc Process Control Div (USA)
Related Parts
5110-00-062-0882INTERCHANGEABLE
PUNCH AND DIE,KNOCKOUT
730BB-2
5133-00-189-9281INTERCHANGEABLE
DRILL,TWIST
4820-00-343-6041INTERCHANGEABLE
SEAT,VALVE
20676
3455-00-516-5042INTERCHANGEABLE
REAMER,MACHINE
19839
5365-00-741-9867INTERCHANGEABLE
RING,CLAMP
62B21728
5305-01-370-6957INTERCHANGEABLE
SCREW,SHOULDER
08024
6850-01-428-3583INTERCHANGEABLE
TONER,INDIRECT ELECTROSTATIC PRO
C3906A
4010-01-478-2412INTERCHANGEABLE
CHAIN,WELDED

Frequently Asked Questions

What is NSN 6685-00-458-4737?

NSN 6685-00-458-4737 is a Pyrometer,indicating, manufactured by Honeywell Inc Process Control Div, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-458-4737?

NSN 6685-00-458-4737 has 3 cross-referenced part numbers: 156X11P (Honeywell Inc Process Control Div), 20676 (Hamilton Sundstrand Corporation), 15501836 (Honeywell Inc Process Control Div).

What NSN replaces 6685-00-458-4737?

There are 8 known substitutes for 6685-00-458-4737: 5110-00-062-0882, 5133-00-189-9281, 4820-00-343-6041 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 156X11P?

Key specifications for 156X11P: Overall Width: 6.500 INCHES NOMINAL IN; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY MEASUREMENT TYPE,SCALE TYPE,SCALE RANGE,SCALE ACCURACY,SCALE CALIBRATION,SCALE SMALLEST INCREMENT,SCALE LENGTH,INDICATING POINT TYPE; Material: STEEL METER CASE; Scale Type: DRUM. 14 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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