PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A3QSpecial Tool,dial

Mahr Inc · NSN 5120-01-408-2356 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-408-2356 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-408-2356. Primary manufacturer part number: A3Q.
Features
  • Special Tool,dial — FSC 5120
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
  • 2 verified cross-references
  • Primary manufacturer: Mahr Inc
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Special Tool,dial, cataloged under National Stock Number 5120-01-408-2356, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Mahr Inc. Government technical data includes 2 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-408-2356
Primary Part NumberA3Q
Item NameSpecial Tool,dial
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerMahr Inc
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5210-00-555-2753 INTERCHANGEABLE
Indicator,dial
Cross-Reference Index
Part NumberManufacturer
A3Q Mahr Inc (USA)
1177F83-9 Fluor Marine Propulsion, Llc (USA)
Related Parts
5210-00-555-2753INTERCHANGEABLE
INDICATOR,DIAL

Frequently Asked Questions

What is NSN 5120-01-408-2356?

NSN 5120-01-408-2356 is a Special Tool,dial, manufactured by Mahr Inc, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-408-2356?

NSN 5120-01-408-2356 has 2 cross-referenced part numbers: A3Q (Mahr Inc), 1177F83-9 (Fluor Marine Propulsion, Llc).

What NSN replaces 5120-01-408-2356?

There is 1 known substitute for 5120-01-408-2356: 5210-00-555-2753. Verify interchangeability with system specifications before substitution.

What are the specifications of A3Q?

Key specifications for A3Q: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. 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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