PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

110440Bolometer,radio Frequency

The Boeing Company Div Defense · NSN 6625-00-643-2521 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-643-2521 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-643-2521. Primary manufacturer part number: 110440.
Features
  • Bolometer,radio Frequency — FSC 6625
  • Battery Case: NOT PROVIDED
  • Frequency Range Rating: +8.5 TO 9.7 GIGAHERTZ
  • Inductive Pickup Loop Type: FIXED
  • Sensing Element Type: THERMISTOR
  • Battery Case: NOT PROVIDED
  • Frequency Range Rating: +8.5 TO 9.7 GIGAHERTZ
  • Inductive Pickup Loop Type: FIXED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Bolometer,radio Frequency, cataloged under National Stock Number 6625-00-643-2521, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is The Boeing Company Div Defense. Government technical data includes 8 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-643-2521
Primary Part Number110440
Item NameBolometer,radio Frequency
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerThe Boeing Company Div Defense
StatusACTIVE
Battery CaseNOT PROVIDED
Frequency Range Rating+8.5 TO 9.7 GIGAHERTZ
Inductive Pickup Loop TypeFIXED
Sensing Element TypeTHERMISTOR
Battery CaseNOT PROVIDED
Frequency Range Rating+8.5 TO 9.7 GIGAHERTZ
Inductive Pickup Loop TypeFIXED
Sensing Element TypeTHERMISTOR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeY
Verified Substitutes 2
5315-00-392-1728110440 INTERCHANGEABLE
Pin,special
Telemechanics Inc
5306-00-518-7058 INTERCHANGEABLE
Bolt,machine
Cross-Reference Index
Part NumberManufacturer
110440 PRIMARY The Boeing Company Div Defense (USA)
110440 Mcdonnell Douglas Corp Mcdonnell Douglas Aerospace Opns West (USA)
Related Parts
5315-00-392-1728INTERCHANGEABLE
PIN,SPECIAL
110440
5306-00-518-7058INTERCHANGEABLE
BOLT,MACHINE

Frequently Asked Questions

What is NSN 6625-00-643-2521?

NSN 6625-00-643-2521 is a Bolometer,radio Frequency, manufactured by The Boeing Company Div Defense, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-643-2521?

NSN 6625-00-643-2521 has 2 cross-referenced part numbers: 110440 (The Boeing Company Div Defense), 110440 (Mcdonnell Douglas Corp Mcdonnell Douglas Aerospace Opns West).

What NSN replaces 6625-00-643-2521?

There are 2 known substitutes for 6625-00-643-2521: 5315-00-392-1728, 5306-00-518-7058. Verify interchangeability with system specifications before substitution.

What are the specifications of 110440?

Key specifications for 110440: Overall Length: 2.438 INCHES NOMINAL IN; Overall Width: 1.625 INCHES NOMINAL IN; Battery Case: NOT PROVIDED; Frequency Range Rating: +8.5 TO 9.7 GIGAHERTZ. 16 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com