PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

37003Marker,tube Type

Sanford Corp · NSN 7520-01-411-4059 · FSC 7520 · No Item Name Available
Verified by PartsTable
NSN 7520-01-411-4059 — this item is cataloged by the U.S. Government under National Stock Number 7520-01-411-4059. Primary manufacturer part number: 37003.
Features
  • Marker,tube Type — FSC 7520
  • Ink Color: BLUE
  • Feed Type: GRAVITY
  • Tip Replaceability: NONREPLACEABLE
  • Tip Type: FINE
  • Ink Grade: PERMANENT
  • Refillable Feature: NOT INCLUDED
  • Pocket Clip: PROVIDED
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Marker,tube Type, cataloged under National Stock Number 7520-01-411-4059, is classified within Federal Supply Class 7520 (No Item Name Available) of the Office Supplies and Devices group. The primary manufacturer of record is Sanford Corp. Government technical data includes 8 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN7520-01-411-4059
Primary Part Number37003
Item NameMarker,tube Type
FSC / FSG7520 / 75 — No Item Name Available
ManufacturerSanford Corp
StatusACTIVE
Ink ColorBLUE
Feed TypeGRAVITY
Tip ReplaceabilityNONREPLACEABLE
Tip TypeFINE
Ink GradePERMANENT
Refillable FeatureNOT INCLUDED
Pocket ClipPROVIDED
Supplementary FeaturesULTRA FINE POINT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5306-00-377-559137003-E INTERCHANGEABLE
Bolt,shoulder
Budd Co the
1680-00-723-626637003 INTERCHANGEABLE
Shaft,pinion
Hydro-Aire Aerospace Corp
5940-00-983-6044 INTERCHANGEABLE
Terminal Board
5340-01-434-134637003 INTERCHANGEABLE
Plate,retaining,seal
Bae Systems Land & Armaments L.p.
Cross-Reference Index
Part NumberManufacturer
NBP0225 General Services Administration Federal Supply Service (USA)
37003 PRIMARY Sanford Corp (USA)
37003 George W. Allen Co., Inc. (USA)
Related Parts
5306-00-377-5591INTERCHANGEABLE
BOLT,SHOULDER
37003-E
1680-00-723-6266INTERCHANGEABLE
SHAFT,PINION
37003
5940-00-983-6044INTERCHANGEABLE
TERMINAL BOARD
5340-01-434-1346INTERCHANGEABLE
PLATE,RETAINING,SEAL
37003

Frequently Asked Questions

What is NSN 7520-01-411-4059?

NSN 7520-01-411-4059 is a Marker,tube Type, manufactured by Sanford Corp, classified under FSC 7520 (No Item Name Available). Status: active.

What are the part numbers for NSN 7520-01-411-4059?

NSN 7520-01-411-4059 has 3 cross-referenced part numbers: NBP0225 (General Services Administration Federal Supply Service), 37003 (Sanford Corp), 37003 (George W. Allen Co., Inc.).

What NSN replaces 7520-01-411-4059?

There are 4 known substitutes for 7520-01-411-4059: 5306-00-377-5591, 1680-00-723-6266, 5940-00-983-6044 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 37003?

Key specifications for 37003: Ink Color: BLUE; Feed Type: GRAVITY; Tip Replaceability: NONREPLACEABLE; Tip Type: FINE. 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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