PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20691Measuring Rod Assembly

Babcock & Wilcox Co · NSN 4470-00-181-8447 · FSC 4470 · No Item Name Available
Verified by PartsTable
NSN 4470-00-181-8447 — this item is cataloged by the U.S. Government under National Stock Number 4470-00-181-8447. Primary manufacturer part number: 20691.
Features
  • Measuring Rod Assembly — FSC 4470
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
  • Criticality Code Justification: ZZZY
  • 4 verified cross-references
  • Primary manufacturer: Babcock & Wilcox Co
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Measuring Rod Assembly, cataloged under National Stock Number 4470-00-181-8447, is classified within Federal Supply Class 4470 (No Item Name Available) of the Furnace, Steam, Drying, Nuclear Reactors group. The primary manufacturer of record is Babcock & Wilcox Co. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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: Active.

Technical Specifications
ParameterValue
NSN4470-00-181-8447
Primary Part Number20691
Item NameMeasuring Rod Assembly
FSC / FSG4470 / 44 — No Item Name Available
ManufacturerBabcock & Wilcox Co
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5133-00-189-9266 INTERCHANGEABLE
Drill,twist
5950-00-351-5329LT1030 INTERCHANGEABLE
Transformer Assembly
Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp
5950-00-568-0193N-1233 INTERCHANGEABLE
Transformer,audio Frequency
Princeton Tool Inc Div Paragon Precision
5962-01-074-8051 INTERCHANGEABLE
Microcircuit,digital
5330-01-420-04572069100 INTERCHANGEABLE
Gasket
Alfa Laval Inc
6240-01-463-5966 INTERCHANGEABLE
Lamp,fluorescent
Cross-Reference Index
Part NumberManufacturer
20691 Babcock & Wilcox Co (USA)
914C181PC1T04 Babcock & Wilcox Companies, the Div Sales & Service (USA)
914C181ITEM1 TO 4 Babcock & Wilcox Companies, the Div Sales & Service (USA)
914C181-1-2-3-4 Babcock & Wilcox Companies, the Div Sales & Service (USA)
Related Parts
5133-00-189-9266INTERCHANGEABLE
DRILL,TWIST
5950-00-351-5329INTERCHANGEABLE
TRANSFORMER ASSEMBLY
LT1030
5950-00-568-0193INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
N-1233
5962-01-074-8051INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5330-01-420-0457INTERCHANGEABLE
GASKET
2069100
6240-01-463-5966INTERCHANGEABLE
LAMP,FLUORESCENT

Frequently Asked Questions

What is NSN 4470-00-181-8447?

NSN 4470-00-181-8447 is a Measuring Rod Assembly, manufactured by Babcock & Wilcox Co, classified under FSC 4470 (No Item Name Available). Status: active.

What are the part numbers for NSN 4470-00-181-8447?

NSN 4470-00-181-8447 has 4 cross-referenced part numbers: 20691 (Babcock & Wilcox Co), 914C181PC1T04 (Babcock & Wilcox Companies, the Div Sales & Service), 914C181ITEM1 TO 4 (Babcock & Wilcox Companies, the Div Sales & Service), 914C181-1-2-3-4 (Babcock & Wilcox Companies, the Div Sales & Service).

What NSN replaces 4470-00-181-8447?

There are 6 known substitutes for 4470-00-181-8447: 5133-00-189-9266, 5950-00-351-5329, 5950-00-568-0193 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20691?

Key specifications for 20691: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.; Criticality Code Justification: ZZZY. 2 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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