PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C99Clamp,gear,balance

Designatronics Incorporated Div Sterling Instruments Div · NSN 5120-00-126-3475 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-126-3475 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-126-3475. Primary manufacturer part number: C99.
Features
  • Clamp,gear,balance — FSC 5120
  • General Characteristics Item Description: STEEL PLATE,CARBON STEEL,SAE 1020,0.813 IN. LG,0.375 IN. W; 2-56 UNC-2A X 0.500 IN. LG. SCREW A
  • 2 verified cross-references
  • Primary manufacturer: Designatronics Incorporated Div Sterling Instruments Div
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Clamp,gear,balance, cataloged under National Stock Number 5120-00-126-3475, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Designatronics Incorporated Div Sterling Instruments Div. Government technical data includes 1 verified specification, 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.

Technical Specifications
ParameterValue
NSN5120-00-126-3475
Primary Part NumberC99
Item NameClamp,gear,balance
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerDesignatronics Incorporated Div Sterling Instruments Div
StatusACTIVE
General Characteristics Item DescriptionSTEEL PLATE,CARBON STEEL,SAE 1020,0.813 IN. LG,0.375 IN. W; 2-56 UNC-2A X 0.500 IN. LG. SCREW A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3110-00-144-8488110381-3 INTERCHANGEABLE
Bearing,ball,annular
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
3110-00-227-4773 INTERCHANGEABLE
Bearing,ball,annular
Cross-Reference Index
Part NumberManufacturer
C99 PRIMARY Designatronics Incorporated Div Sterling Instruments Div (USA)
2995151 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
3110-00-144-8488INTERCHANGEABLE
BEARING,BALL,ANNULAR
110381-3
3110-00-227-4773INTERCHANGEABLE
BEARING,BALL,ANNULAR

Frequently Asked Questions

What is NSN 5120-00-126-3475?

NSN 5120-00-126-3475 is a Clamp,gear,balance, manufactured by Designatronics Incorporated Div Sterling Instruments Div, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-126-3475?

NSN 5120-00-126-3475 has 2 cross-referenced part numbers: C99 (Designatronics Incorporated Div Sterling Instruments Div), 2995151 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 5120-00-126-3475?

There are 2 known substitutes for 5120-00-126-3475: 3110-00-144-8488, 3110-00-227-4773. Verify interchangeability with system specifications before substitution.

What are the specifications of C99?

Key specifications for C99: General Characteristics Item Description: STEEL PLATE,CARBON STEEL,SAE 1020,0.813 IN. LG,0.375 IN. W; 2-56 UNC-2A X 0.500 IN. LG. SCREW A. 1 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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