PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

P326Protractor,semicircular

Alvin and Co Inc · NSN 6675-00-190-5278 · FSC 6675 · No Item Name Available
Verified by PartsTable
NSN 6675-00-190-5278 — this item is cataloged by the U.S. Government under National Stock Number 6675-00-190-5278. Primary manufacturer part number: P326.
Features
  • Protractor,semicircular — FSC 6675
  • Scale Quantity: 2
  • Scale Calibration: 0 TO 180 BOTH WAYS
  • Material: COPPER ALLOY 745
  • Diameter: 6.000 INCHES IN
  • Graduation Unit: 0.500 DEGREES
  • 2 verified cross-references
  • Primary manufacturer: Alvin and Co Inc
Applications
  • Applications requiring Copper Alloy 745 construction
General Description

The Protractor,semicircular, cataloged under National Stock Number 6675-00-190-5278, is classified within Federal Supply Class 6675 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Alvin and Co Inc. Government technical data includes 5 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6675-00-190-5278
Primary Part NumberP326
Item NameProtractor,semicircular
FSC / FSG6675 / 66 — No Item Name Available
ManufacturerAlvin and Co Inc
StatusACTIVE
Scale Quantity2
Scale Calibration0 TO 180 BOTH WAYS
MaterialCOPPER ALLOY 745
Diameter6.000 INCHES IN
Graduation Unit0.500 DEGREES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5310-00-203-8970 INTERCHANGEABLE
Washer,flat
3040-00-374-3879 INTERCHANGEABLE
Ball Joint
3030-00-529-0479 INTERCHANGEABLE
Belt,v
5120-00-541-6732 INTERCHANGEABLE
Pliers
5330-00-928-1819P326 INTERCHANGEABLE
Gasket
Marvel Engineering Company Inc
3465-01-133-5497P-32-6 INTERCHANGEABLE
Bushing,drill,jig
Carr Lane Manufacturing Co
Cross-Reference Index
Part NumberManufacturer
P326 Alvin and Co Inc (USA)
71276 Oce-Elliott Inc (USA)
Related Parts
5310-00-203-8970INTERCHANGEABLE
WASHER,FLAT
3040-00-374-3879INTERCHANGEABLE
BALL JOINT
3030-00-529-0479INTERCHANGEABLE
BELT,V
5120-00-541-6732INTERCHANGEABLE
PLIERS
5330-00-928-1819INTERCHANGEABLE
GASKET
P326
3465-01-133-5497INTERCHANGEABLE
BUSHING,DRILL,JIG
P-32-6

Frequently Asked Questions

What is NSN 6675-00-190-5278?

NSN 6675-00-190-5278 is a Protractor,semicircular, manufactured by Alvin and Co Inc, classified under FSC 6675 (No Item Name Available). Status: active.

What are the part numbers for NSN 6675-00-190-5278?

NSN 6675-00-190-5278 has 2 cross-referenced part numbers: P326 (Alvin and Co Inc), 71276 (Oce-Elliott Inc).

What NSN replaces 6675-00-190-5278?

There are 6 known substitutes for 6675-00-190-5278: 5310-00-203-8970, 3040-00-374-3879, 3030-00-529-0479 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of P326?

Key specifications for P326: Scale Quantity: 2; Scale Calibration: 0 TO 180 BOTH WAYS; Material: COPPER ALLOY 745; Diameter: 6.000 INCHES IN. 5 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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