PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SCB70009Screw,cap,hexagon Head

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5305-00-521-8481 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-521-8481 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-521-8481. Primary manufacturer part number: SCB70009.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Head Style: HEXAGON
  • Surface Treatment: CHROMATE OVERALL
  • Thread Series Designator: UNF
  • Material: ALUMINUM ALLOY 2024 OVERALL
  • Thread Length: 0.234 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
  • Nominal Thread Diameter: 0.250 INCHES IN
  • Head Height: 0.125 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Aluminum Alloy 2024 Overall construction
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-521-8481, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 12 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-521-8481
Primary Part NumberSCB70009
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Head StyleHEXAGON
Surface TreatmentCHROMATE OVERALL
Thread Series DesignatorUNF
MaterialALUMINUM ALLOY 2024 OVERALL
Thread Length0.234 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
Nominal Thread Diameter0.250 INCHES IN
Head Height0.125 INCHES NOMINAL IN
Thread Class2A A
Thread DirectionRIGHT-HAND
Thread Quantity Per Inch28
Fastener Length0.625 INCHES NOMINAL IN
Width Between Flats0.312 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5210-00-221-1993159M INTERCHANGEABLE
Gage,screw Pitch
L.s. Starrett Company (the) Div Tool Division
5315-00-980-618850591 INTERCHANGEABLE
Pin,quick Release
Avibank Mfg., Inc. Dba Avibank Manufacturing Inc
Cross-Reference Index
Part NumberManufacturer
SCB70009 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
50591 Kleinschmidt Inc (USA)
Related Parts
5210-00-221-1993INTERCHANGEABLE
GAGE,SCREW PITCH
159M
5315-00-980-6188INTERCHANGEABLE
PIN,QUICK RELEASE
50591

Frequently Asked Questions

What is NSN 5305-00-521-8481?

NSN 5305-00-521-8481 is a Screw,cap,hexagon Head, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-521-8481?

NSN 5305-00-521-8481 has 2 cross-referenced part numbers: SCB70009 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 50591 (Kleinschmidt Inc).

What NSN replaces 5305-00-521-8481?

There are 2 known substitutes for 5305-00-521-8481: 5210-00-221-1993, 5315-00-980-6188. Verify interchangeability with system specifications before substitution.

What are the specifications of SCB70009?

Key specifications for SCB70009: Head Style: HEXAGON; Surface Treatment: CHROMATE OVERALL; Thread Series Designator: UNF; Material: ALUMINUM ALLOY 2024 OVERALL. 12 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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