PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

177DPlumb Bob

L.s. Starrett Company (the) Div Tool Division · NSN 5210-01-646-5632 · FSC 5210 · No Item Name Available
Verified by PartsTable
NSN 5210-01-646-5632 — this item is cataloged by the U.S. Government under National Stock Number 5210-01-646-5632. Primary manufacturer part number: 177D.
Features
  • Plumb Bob — FSC 5210
  • Body Type: SOLID
  • Style Designator: SOLID CYLINDRICAL
  • Point Hardness Designation: HARDENED
  • Top Adjustability: ADJUSTABLE OR NONADJUSTABLE
  • Point Removability: REMOVABLE
  • Top Removability: REMOVABLE
  • Material: STEEL
Applications
  • Applications requiring Steel construction
General Description

The Plumb Bob, cataloged under National Stock Number 5210-01-646-5632, 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 7 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5210-01-646-5632
Primary Part Number177D
Item NamePlumb Bob
FSC / FSG5210 / 52 — No Item Name Available
ManufacturerL.s. Starrett Company (the) Div Tool Division
StatusACTIVE
Body TypeSOLID
Style DesignatorSOLID CYLINDRICAL
Point Hardness DesignationHARDENED
Top AdjustabilityADJUSTABLE OR NONADJUSTABLE
Point RemovabilityREMOVABLE
Top RemovabilityREMOVABLE
MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5950-00-248-9063SMC174753 INTERCHANGEABLE
Coil,telephone
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4730-01-556-7261177-D INTERCHANGEABLE
Coupling,tube
Flagg Stanley G & Co Inc Dba Flagg Brass
Cross-Reference Index
Part NumberManufacturer
177D PRIMARY L.s. Starrett Company (the) Div Tool Division (USA)
Related Parts
5950-00-248-9063INTERCHANGEABLE
COIL,TELEPHONE
SMC174753
4730-01-556-7261INTERCHANGEABLE
COUPLING,TUBE
177-D

Frequently Asked Questions

What is NSN 5210-01-646-5632?

NSN 5210-01-646-5632 is a Plumb Bob, 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 5210-01-646-5632?

NSN 5210-01-646-5632 has 1 cross-referenced part number: 177D (L.s. Starrett Company (the) Div Tool Division).

What NSN replaces 5210-01-646-5632?

There are 2 known substitutes for 5210-01-646-5632: 5950-00-248-9063, 4730-01-556-7261. Verify interchangeability with system specifications before substitution.

What are the specifications of 177D?

Key specifications for 177D: Body Type: SOLID; Style Designator: SOLID CYLINDRICAL; Point Hardness Designation: HARDENED; Weight: 14.5 OUNCES OZ. 9 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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