PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50ATrammel Heads

L.s. Starrett Company (the) Div Tool Division · NSN 5210-00-221-1850 · FSC 5210 · No Item Name Available
Verified by PartsTable
NSN 5210-00-221-1850 — this item is cataloged by the U.S. Government under National Stock Number 5210-00-221-1850. Primary manufacturer part number: 50A.
Features
  • Trammel Heads — FSC 5210
  • Nondefinitive Spec/std Data: 2 TYPE AND B CLASS
  • General Characteristics Item Description: DESIGNED FOR RECT BEAM; W/FINE ADJ; SCRIBER PTS
  • 3 verified cross-references
  • 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 Trammel Heads, cataloged under National Stock Number 5210-00-221-1850, 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 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5210-00-221-1850
Primary Part Number50A
Item NameTrammel Heads
FSC / FSG5210 / 52 — No Item Name Available
ManufacturerL.s. Starrett Company (the) Div Tool Division
StatusACTIVE
Nondefinitive Spec/std Data2 TYPE AND B CLASS
General Characteristics Item DescriptionDESIGNED FOR RECT BEAM; W/FINE ADJ; SCRIBER PTS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
9905-00-202-36390100A INTERCHANGEABLE
Reflector,indicating,clearance
Grote Industries Inc Dba Grote Manufacturing Co Div Military Products
5210-00-221-1848 INTERCHANGEABLE
Trammel
5950-00-232-4727 INTERCHANGEABLE
Coil,electrical
5210-00-267-49054 INTERCHANGEABLE
Trammel Heads
Stanley Tools Div of Stanley Works
6625-00-269-446150A INTERCHANGEABLE
Detecting Element,directional Co
Bird Electronic Corporation Div Bird Electronic Corp
3030-00-529-0489 INTERCHANGEABLE
Belt,v
5210-00-529-5139 INTERCHANGEABLE
Trammel Points
5996-00-827-407550A INTERCHANGEABLE
Amplifier,electronic Control
L3 Technologies, Inc. Div L3 Keo
7710-01-515-8896 INTERCHANGEABLE
Trombone,bass
Cross-Reference Index
Part NumberManufacturer
50A L.s. Starrett Company (the) Div Tool Division (USA)
GGG-T-661 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
GGG-T-661 TY2CLB General Services Administration Federal Supply Service (USA)
Related Parts
9905-00-202-3639INTERCHANGEABLE
REFLECTOR,INDICATING,CLEARANCE
0100A
5210-00-221-1848INTERCHANGEABLE
TRAMMEL
5950-00-232-4727INTERCHANGEABLE
COIL,ELECTRICAL
5210-00-267-4905INTERCHANGEABLE
TRAMMEL HEADS
4
6625-00-269-4461INTERCHANGEABLE
DETECTING ELEMENT,DIRECTIONAL CO
50A
3030-00-529-0489INTERCHANGEABLE
BELT,V
5210-00-529-5139INTERCHANGEABLE
TRAMMEL POINTS
5996-00-827-4075INTERCHANGEABLE
AMPLIFIER,ELECTRONIC CONTROL
50A
7710-01-515-8896INTERCHANGEABLE
TROMBONE,BASS

Frequently Asked Questions

What is NSN 5210-00-221-1850?

NSN 5210-00-221-1850 is a Trammel Heads, 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 5210-00-221-1850?

NSN 5210-00-221-1850 has 3 cross-referenced part numbers: 50A (L.s. Starrett Company (the) Div Tool Division), GGG-T-661 (Federal Specifications Promulgated by General Services Administration Washington DC), GGG-T-661 TY2CLB (General Services Administration Federal Supply Service).

What NSN replaces 5210-00-221-1850?

There are 9 known substitutes for 5210-00-221-1850: 9905-00-202-3639, 5210-00-221-1848, 5950-00-232-4727 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50A?

Key specifications for 50A: Nondefinitive Spec/std Data: 2 TYPE AND B CLASS; General Characteristics Item Description: DESIGNED FOR RECT BEAM; W/FINE ADJ; SCRIBER PTS. 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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