PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

124ACaliper,micrometer,inside

L.s. Starrett Company (the) Div Tool Division · NSN 5210-00-813-6644 · FSC 5210 · No Item Name Available
Verified by PartsTable
NSN 5210-00-813-6644 — this item is cataloged by the U.S. Government under National Stock Number 5210-00-813-6644. Primary manufacturer part number: 124A.
Features
  • Caliper,micrometer,inside — FSC 5210
  • Design Type: ROD
  • Graduation Unit: THOUSANDTHS OF AN INCH
  • Gaging Range: +2.000 TO 8.000 INCHES IN
  • 1 verified cross-reference
  • Primary manufacturer: L.s. Starrett Company (the) Div Tool Division
Applications
  • Quality assurance and inspection
  • Precision measurement and calibration
  • Laboratory and test equipment
General Description

The Caliper,micrometer,inside, cataloged under National Stock Number 5210-00-813-6644, is classified within Federal Supply Class 5210 (No Item Name Available) of the Measuring Tools group. The primary manufacturer of record is L.s. Starrett Company (the) Div Tool Division. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5210-00-813-6644
Primary Part Number124A
Item NameCaliper,micrometer,inside
FSC / FSG5210 / 52 — No Item Name Available
ManufacturerL.s. Starrett Company (the) Div Tool Division
StatusACTIVE
Design TypeROD
Graduation UnitTHOUSANDTHS OF AN INCH
Gaging Range+2.000 TO 8.000 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4730-00-288-9930157221 INTERCHANGEABLE
Adapter,straight,pipe to Tube
U S Army Tank Automotive Command Amsta-Im-Mm
6640-00-501-549631262 INTERCHANGEABLE
Oven,laboratory
Precision Scientific Petroleum Instruments Co
6645-01-013-6254124U INTERCHANGEABLE
Clock,digital
E S Enterprises
5996-01-037-2084 INTERCHANGEABLE
Amplifier,audio-Radio Frequency
6530-01-345-7845124A INTERCHANGEABLE
Table,utility,hospital
S and S X-Ray Products Inc
3431-01-533-8337I-24A INTERCHANGEABLE
Feeder,wire,welding
Miller Electric Mfg. Llc
5340-01-585-2311124A INTERCHANGEABLE
Handle,manual Control
T and S Brass and Bronze Works Inc
Cross-Reference Index
Part NumberManufacturer
124A PRIMARY L.s. Starrett Company (the) Div Tool Division (USA)
Related Parts
4730-00-288-9930INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
157221
6640-00-501-5496INTERCHANGEABLE
OVEN,LABORATORY
31262
6645-01-013-6254INTERCHANGEABLE
CLOCK,DIGITAL
124U
5996-01-037-2084INTERCHANGEABLE
AMPLIFIER,AUDIO-RADIO FREQUENCY
6530-01-345-7845INTERCHANGEABLE
TABLE,UTILITY,HOSPITAL
124A
3431-01-533-8337INTERCHANGEABLE
FEEDER,WIRE,WELDING
I-24A
5340-01-585-2311INTERCHANGEABLE
HANDLE,MANUAL CONTROL
124A

Frequently Asked Questions

What is NSN 5210-00-813-6644?

NSN 5210-00-813-6644 is a Caliper,micrometer,inside, manufactured by L.s. Starrett Company (the) Div Tool Division, classified under FSC 5210 (No Item Name Available). Status: active.

What are the part numbers for NSN 5210-00-813-6644?

NSN 5210-00-813-6644 has 1 cross-referenced part number: 124A (L.s. Starrett Company (the) Div Tool Division).

What NSN replaces 5210-00-813-6644?

There are 7 known substitutes for 5210-00-813-6644: 4730-00-288-9930, 6640-00-501-5496, 6645-01-013-6254 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 124A?

Key specifications for 124A: Design Type: ROD; Graduation Unit: THOUSANDTHS OF AN INCH; Gaging Range: +2.000 TO 8.000 INCHES IN. 3 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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