PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2909Staff,balance

Longines-Wittnauer Watch Co · NSN 6645-00-333-3333 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-00-333-3333 — this item is cataloged by the U.S. Government under National Stock Number 6645-00-333-3333. Primary manufacturer part number: 2909.
Features
  • Staff,balance — FSC 6645
  • 1 verified cross-reference
  • Primary manufacturer: Longines-Wittnauer Watch Co
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Staff,balance, cataloged under National Stock Number 6645-00-333-3333, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Longines-Wittnauer Watch Co. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameStaff,balance
FSC / FSG6645 — No Item Name Available (FSG 66)
ManufacturersLongines-Wittnauer Watch Co (CAGE 36922)
Technical Specifications
ParameterValue
NSN6645-00-333-3333
Primary Part Number2909
Item NameStaff,balance
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerLongines-Wittnauer Watch Co
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
3110-00-156-1879 INTERCHANGEABLE
Bearing,ball,thrust
3110-00-227-2825 INTERCHANGEABLE
Bearing,roller,needle
5325-00-269-0764 INTERCHANGEABLE
Ring,retaining
5962-00-488-4270 INTERCHANGEABLE
Microcircuit,linear
3120-00-516-759158042B INTERCHANGEABLE
Bearing,sleeve
Brinkley Technology Group Llc Dba Hercules Manufacturing
4820-00-980-491047600-3110 INTERCHANGEABLE
Valve,safety Relief
Fluid Mechanics Valve Company
7510-01-126-37831352909 INTERCHANGEABLE
Typing Element
International Business Machines Corp Parts Order Center Dept E - 54
6110-01-210-3145290-9 INTERCHANGEABLE
Starter,motor
Insinger Machine Co
2590-01-295-7074 INTERCHANGEABLE
Cap,filler Opening
8465-01-410-83402909 INTERCHANGEABLE
Bag,laundry
Sewing Source, Inc., the
Cross-Reference Index
Part NumberManufacturer
2909 Longines-Wittnauer Watch Co (USA)
Related Parts
3110-00-156-1879INTERCHANGEABLE
BEARING,BALL,THRUST
3110-00-227-2825INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
5325-00-269-0764INTERCHANGEABLE
RING,RETAINING
5962-00-488-4270INTERCHANGEABLE
MICROCIRCUIT,LINEAR
3120-00-516-7591INTERCHANGEABLE
BEARING,SLEEVE
58042B
4820-00-980-4910INTERCHANGEABLE
VALVE,SAFETY RELIEF
47600-3110
7510-01-126-3783INTERCHANGEABLE
TYPING ELEMENT
1352909
6110-01-210-3145INTERCHANGEABLE
STARTER,MOTOR
290-9
2590-01-295-7074INTERCHANGEABLE
CAP,FILLER OPENING
8465-01-410-8340INTERCHANGEABLE
BAG,LAUNDRY
2909
3110-01-524-8772INTERCHANGEABLE
BEARING,BALL,THRUST
2909

Frequently Asked Questions

What is NSN 6645-00-333-3333?

NSN 6645-00-333-3333 is a Staff,balance, manufactured by Longines-Wittnauer Watch Co, classified under FSC 6645 (No Item Name Available). Status: active.

What are the part numbers for NSN 6645-00-333-3333?

NSN 6645-00-333-3333 has 1 cross-referenced part number: 2909 (Longines-Wittnauer Watch Co).

What NSN replaces 6645-00-333-3333?

There are 11 known substitutes for 6645-00-333-3333: 3110-00-156-1879, 3110-00-227-2825, 5325-00-269-0764 and 8 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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