PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21689Screw,tapping

Astrocom Electronics Inc · NSN 5305-00-880-9575 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-880-9575 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-880-9575. Primary manufacturer part number: 21689.
Features
  • Screw,tapping — FSC 5305
  • Nonmachine Thread Style: DOG TYPE (TYPE B OR C)
  • Surface Treatment: PASSIVATE OVERALL
  • Material: STEEL CORROSION RESISTING OVERALL
  • Head Height: 0.045 INCHES MINIMUM AND 0.053 INCHES MAXIMUM IN
  • Head Diameter: 0.155 INCHES MINIMUM AND 0.167 INCHES MAXIMUM IN
  • Nonmachine Nominal Thread Diameter: 0.086 INCHES IN
  • Fastener Length: 0.250 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Screw,tapping, cataloged under National Stock Number 5305-00-880-9575, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Astrocom Electronics Inc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5305-00-880-9575
Primary Part Number21689
Item NameScrew,tapping
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerAstrocom Electronics Inc
StatusACTIVE
Nonmachine Thread StyleDOG TYPE (TYPE B OR C)
Surface TreatmentPASSIVATE OVERALL
MaterialSTEEL CORROSION RESISTING OVERALL
Head Height0.045 INCHES MINIMUM AND 0.053 INCHES MAXIMUM IN
Head Diameter0.155 INCHES MINIMUM AND 0.167 INCHES MAXIMUM IN
Nonmachine Nominal Thread Diameter0.086 INCHES IN
Fastener Length0.250 INCHES NOMINAL IN
Internal Drive StyleSLOT
Head StylePAN NO. 2
Material Document and Classification66,COMP 18-8 FED STD SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5340-00-194-008321689 INTERCHANGEABLE
Clamp,loop
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
2530-00-569-399621689 INTERCHANGEABLE
Chamber,air Brake
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
5930-01-254-284221689 INTERCHANGEABLE
Switch,interlock
Sensata Technologies, Inc. Div Sensata Attleboro
5340-01-380-132799121689 INTERCHANGEABLE
Cap,protective,dust and Moisture
Alfa Laval Inc
Cross-Reference Index
Part NumberManufacturer
21689 PRIMARY Astrocom Electronics Inc (USA)
Related Parts
5340-00-194-0083INTERCHANGEABLE
CLAMP,LOOP
21689
2530-00-569-3996INTERCHANGEABLE
CHAMBER,AIR BRAKE
21689
5930-01-254-2842INTERCHANGEABLE
SWITCH,INTERLOCK
21689
5340-01-380-1327INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
99121689

Frequently Asked Questions

What is NSN 5305-00-880-9575?

NSN 5305-00-880-9575 is a Screw,tapping, manufactured by Astrocom Electronics Inc, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-880-9575?

NSN 5305-00-880-9575 has 1 cross-referenced part number: 21689 (Astrocom Electronics Inc).

What NSN replaces 5305-00-880-9575?

There are 4 known substitutes for 5305-00-880-9575: 5340-00-194-0083, 2530-00-569-3996, 5930-01-254-2842 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21689?

Key specifications for 21689: Nonmachine Thread Style: DOG TYPE (TYPE B OR C); Surface Treatment: PASSIVATE OVERALL; Material: STEEL CORROSION RESISTING OVERALL; Head Height: 0.045 INCHES MINIMUM AND 0.053 INCHES MAXIMUM IN. 10 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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