PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7520-00-NIB-1673Marker,tube Type

National Industries for the Blind · NSN 7520-01-520-3889 · FSC 7520 · No Item Name Available
Verified by PartsTable
NSN 7520-01-520-3889 — this item is cataloged by the U.S. Government under National Stock Number 7520-01-520-3889. Primary manufacturer part number: 7520-00-NIB-1673.
Features
  • Marker,tube Type — FSC 7520
  • Ink Grade: PERMANENT
  • Refillable Feature: NOT INCLUDED
  • Ink Color: RED
  • Tip Replaceability: NONREPLACEABLE
  • Pocket Clip: PROVIDED
  • 4 verified cross-references
  • Primary manufacturer: National Industries for the Blind
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Marker,tube Type, cataloged under National Stock Number 7520-01-520-3889, is classified within Federal Supply Class 7520 (No Item Name Available) of the Office Supplies and Devices group. The primary manufacturer of record is National Industries for the Blind. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN7520-01-520-3889
Primary Part Number7520-00-NIB-1673
Item NameMarker,tube Type
FSC / FSG7520 / 75 — No Item Name Available
ManufacturerNational Industries for the Blind
StatusACTIVE
Ink GradePERMANENT
Refillable FeatureNOT INCLUDED
Ink ColorRED
Tip ReplaceabilityNONREPLACEABLE
Pocket ClipPROVIDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5995-00-518-6497EA81084-3 INTERCHANGEABLE
Cable Assembly,test
Simmonds Precision Products Inc
1377-00-891-6318 INTERCHANGEABLE
Actuator,explosive,rotary
1680-00-910-1341 INTERCHANGEABLE
Bracket,quadrant
5950-01-251-242741404 INTERCHANGEABLE
Transformer,current
Vanguard Electronics, Llc
2590-01-354-2916637512 INTERCHANGEABLE
Control Assembly,push-Pull
Phillips Corporation Div Federal Division
5340-01-512-0611100044 INTERCHANGEABLE
Strap,retaining
Tim Price Inc. Dba Tim Price Inc
7520-01-520-31537520-00-NIB-1672 INTERCHANGEABLE
Marker,tube Type
National Industries for the Blind
7520-01-520-38867520-00-NIB-1675 INTERCHANGEABLE
Pen,plastic Tip
National Industries for the Blind
7520-01-520-38877520-00-NIB-1674 INTERCHANGEABLE
Marker,tube Type
National Industries for the Blind
7520-01-520-38887520-00-NIB-1676 INTERCHANGEABLE
Marker Assortment,tube Type
National Industries for the Blind
Cross-Reference Index
Part NumberManufacturer
ASTM D4236 American Society for Testing and Materials Dba Astm International (USA)
100044 Mono Machines Llc Dba Supply Chimp Div Mono Machines Llc Dba Supply Chimp (USA)
N765362 Noble Supply & Logistics, Llc (USA)
7520-00-NIB-1673 PRIMARY National Industries for the Blind (USA)
Related Parts
5995-00-518-6497INTERCHANGEABLE
CABLE ASSEMBLY,TEST
EA81084-3
1377-00-891-6318INTERCHANGEABLE
ACTUATOR,EXPLOSIVE,ROTARY
1680-00-910-1341INTERCHANGEABLE
BRACKET,QUADRANT
5950-01-251-2427INTERCHANGEABLE
TRANSFORMER,CURRENT
41404
2590-01-354-2916INTERCHANGEABLE
CONTROL ASSEMBLY,PUSH-PULL
637512
5340-01-512-0611INTERCHANGEABLE
STRAP,RETAINING
100044
7520-01-520-3153INTERCHANGEABLE
MARKER,TUBE TYPE
7520-00-NIB-1672
7520-01-520-3886INTERCHANGEABLE
PEN,PLASTIC TIP
7520-00-NIB-1675
7520-01-520-3887INTERCHANGEABLE
MARKER,TUBE TYPE
7520-00-NIB-1674
7520-01-520-3888INTERCHANGEABLE
MARKER ASSORTMENT,TUBE TYPE
7520-00-NIB-1676
7520-01-553-8141INTERCHANGEABLE
MARKER ASSORTMENT,TUBE TYPE
7520-00-NIB-1631
7520-01-553-8143INTERCHANGEABLE
MARKER,TUBE TYPE
7520-00-NIB-1635

Frequently Asked Questions

What is NSN 7520-01-520-3889?

NSN 7520-01-520-3889 is a Marker,tube Type, manufactured by National Industries for the Blind, classified under FSC 7520 (No Item Name Available). Status: active.

What are the part numbers for NSN 7520-01-520-3889?

NSN 7520-01-520-3889 has 4 cross-referenced part numbers: ASTM D4236 (American Society for Testing and Materials Dba Astm International), 100044 (Mono Machines Llc Dba Supply Chimp Div Mono Machines Llc Dba Supply Chimp), N765362 (Noble Supply & Logistics, Llc), 7520-00-NIB-1673 (National Industries for the Blind).

What NSN replaces 7520-01-520-3889?

There are 12 known substitutes for 7520-01-520-3889: 5995-00-518-6497, 1377-00-891-6318, 1680-00-910-1341 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7520-00-NIB-1673?

Key specifications for 7520-00-NIB-1673: Ink Grade: PERMANENT; Refillable Feature: NOT INCLUDED; Special Features: IMPRESSION MARKER COMBINES FUNCTION AND STYLE IN AN ATTRACTIVE RUBBER GRIP BARREL; ULTRA FINE TIP; Ink Color: RED. 6 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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