PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

H21-0001-106Screw,assembled Washer

Textron Inc Camcar Div Sems Products Unit · NSN 5305-01-359-0021 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-359-0021 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-359-0021. Primary manufacturer part number: H21-0001-106.
Features
  • Screw,assembled Washer — FSC 5305
  • Primary Washer Material Thickness: 0.025 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
  • Head Height: 0.066 INCHES MINIMUM AND 0.091 INCHES MAXIMUM IN
  • Primary Washer Outside Diameter: 0.307 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
  • Material: STEEL COMP 302 OVERALL
  • Thread Length: 0.375 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 32
  • Head Style: PAN NO. 2
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 302 Overall construction
General Description

The Screw,assembled Washer, cataloged under National Stock Number 5305-01-359-0021, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Textron Inc Camcar Div Sems Products Unit. Government technical data includes 13 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-359-0021
Primary Part NumberH21-0001-106
Item NameScrew,assembled Washer
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerTextron Inc Camcar Div Sems Products Unit
StatusACTIVE
Primary Washer Material Thickness0.025 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
Head Height0.066 INCHES MINIMUM AND 0.091 INCHES MAXIMUM IN
Primary Washer Outside Diameter0.307 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
MaterialSTEEL COMP 302 OVERALL
Thread Length0.375 INCHES NOMINAL IN
Thread Quantity Per Inch32
Head StylePAN NO. 2
Internal Drive StyleCROSS RECESS TYPE 1
Thread DirectionRIGHT-HAND
Washer Quantity1
Nominal Thread Diameter0.138 INCHES IN
Head Diameter0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
Primary Washer StyleDOME INTERNAL TEETH
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5305-00-082-8440MS3212-13 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-685-37356-32X3-8 INTERCHANGEABLE
Screw,machine
Allmetal Screw Products Corp
5305-00-805-87516-32X3-8 INTERCHANGEABLE
Screw,cap,socket Head
Sps Technologies, Llc Dba PB Fasteners
Cross-Reference Index
Part NumberManufacturer
H21-0001-106 Textron Inc Camcar Div Sems Products Unit (USA)
H21-0001-106 L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications (USA)
6-32X3/8 Textron Fastening Systems Dba Decorah Operations Tfs (USA)
Related Parts
5305-00-082-8440INTERCHANGEABLE
SCREW,MACHINE
MS3212-13
5305-00-685-3735INTERCHANGEABLE
SCREW,MACHINE
6-32X3-8
5305-00-805-8751INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
6-32X3-8

Frequently Asked Questions

What is NSN 5305-01-359-0021?

NSN 5305-01-359-0021 is a Screw,assembled Washer, manufactured by Textron Inc Camcar Div Sems Products Unit, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-359-0021?

NSN 5305-01-359-0021 has 3 cross-referenced part numbers: H21-0001-106 (Textron Inc Camcar Div Sems Products Unit), H21-0001-106 (L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications), 6-32X3/8 (Textron Fastening Systems Dba Decorah Operations Tfs).

What NSN replaces 5305-01-359-0021?

There are 3 known substitutes for 5305-01-359-0021: 5305-00-082-8440, 5305-00-685-3735, 5305-00-805-8751. Verify interchangeability with system specifications before substitution.

What are the specifications of H21-0001-106?

Key specifications for H21-0001-106: Primary Washer Material Thickness: 0.025 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN; Head Height: 0.066 INCHES MINIMUM AND 0.091 INCHES MAXIMUM IN; Primary Washer Outside Diameter: 0.307 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN; Material: STEEL COMP 302 OVERALL. 13 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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