PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3420-ALetter,sign

Brady Worldwide Inc · NSN 9905-00-021-0768 · FSC 9905 · No Item Name Available
Verified by PartsTable
NSN 9905-00-021-0768 — this item is cataloged by the U.S. Government under National Stock Number 9905-00-021-0768. Primary manufacturer part number: 3420-A.
Features
  • Letter,sign — FSC 9905
  • Color: BLACK
  • Features Provided: REMOVEABLE PROTECTIVE BACKING AND BACK ADHESIVE SURFACE
  • Inscription: A
  • Adhesive Type: PRESSURE SENSITIVE
  • Inscription Width: 0.562 INCHES NOMINAL IN
  • Inscription Height: 0.750 INCHES NOMINAL IN
  • Attachment Method: ADHESIVE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Letter,sign, cataloged under National Stock Number 9905-00-021-0768, is classified within Federal Supply Class 9905 (No Item Name Available) of the Miscellaneous group. The primary manufacturer of record is Brady Worldwide Inc. Government technical data includes 7 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9905-00-021-0768
Primary Part Number3420-A
Item NameLetter,sign
FSC / FSG9905 / 99 — No Item Name Available
ManufacturerBrady Worldwide Inc
StatusACTIVE
ColorBLACK
Features ProvidedREMOVEABLE PROTECTIVE BACKING AND BACK ADHESIVE SURFACE
InscriptionA
Adhesive TypePRESSURE SENSITIVE
Inscription Width0.562 INCHES NOMINAL IN
Inscription Height0.750 INCHES NOMINAL IN
Attachment MethodADHESIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5999-00-197-22883420A INTERCHANGEABLE
Heat Sink,electrical-Electronic
Cts Electronic Components (california) Inc Dba Ierc Div Cts Electronic Components
Cross-Reference Index
Part NumberManufacturer
3420-A Brady United States (USA)
3420-A PRIMARY Brady Worldwide Inc (USA)
Related Parts
5999-00-197-2288INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
3420A

Frequently Asked Questions

What is NSN 9905-00-021-0768?

NSN 9905-00-021-0768 is a Letter,sign, manufactured by Brady Worldwide Inc, classified under FSC 9905 (No Item Name Available). Status: active.

What are the part numbers for NSN 9905-00-021-0768?

NSN 9905-00-021-0768 has 2 cross-referenced part numbers: 3420-A (Brady United States), 3420-A (Brady Worldwide Inc).

What NSN replaces 9905-00-021-0768?

There is 1 known substitute for 9905-00-021-0768: 5999-00-197-2288. Verify interchangeability with system specifications before substitution.

What are the specifications of 3420-A?

Key specifications for 3420-A: Color: BLACK; Special Features: DISPENSER CARD W/2 STRIPS OF 16 LETTERS EACH; MATERIAL: CLOTH, VINYL COATED; Features Provided: REMOVEABLE PROTECTIVE BACKING AND BACK ADHESIVE SURFACE; Inscription: A. 8 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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