PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

H12-0002-203Screw,machine

L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications · NSN 5305-01-212-3451 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-212-3451 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-212-3451. Primary manufacturer part number: H12-0002-203.
Features
  • Screw,machine — FSC 5305
  • Head Height: 0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN
  • Thread Quantity Per Inch: 32
  • Nominal Thread Diameter: 0.138 INCHES IN
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Thread Class: 2A A
  • Thread Length: 0.158 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
  • Internal Drive Style: CROSS RECESS TYPE 1
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-01-212-3451, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications. Government technical data includes 12 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-212-3451
Primary Part NumberH12-0002-203
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerL3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications
StatusACTIVE
Head Height0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN
Thread Quantity Per Inch32
Nominal Thread Diameter0.138 INCHES IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread Class2A A
Thread Length0.158 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
Internal Drive StyleCROSS RECESS TYPE 1
Head Diameter0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Screw MaterialCOPPER ALLOY
Fastener Length0.220 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
Head StylePAN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5330-00-292-0490 INTERCHANGEABLE
Seal,plain Encased
3950-00-463-5259 INTERCHANGEABLE
Cam,brake
4330-01-040-5516921042 INTERCHANGEABLE
Filter Element,fluid
Parker-Hannifin Corporation Dba Hydraulic Filter Division Div Hydraulic & Fuel Filter Division
5930-01-075-0224 INTERCHANGEABLE
Switch,rotary
5330-01-168-5401 INTERCHANGEABLE
Seal
5330-01-207-735421042 INTERCHANGEABLE
Gasket
Parker Hannifin Corporation Div Hydraulic Systems Division
5355-01-242-49762-104-2 INTERCHANGEABLE
Knob
Bei Sensors & Systems Company, Inc. Dba Bei Duncan
4720-01-464-249221042 INTERCHANGEABLE
Hose,preformed
Gates Corporation
5360-01-592-187621042 INTERCHANGEABLE
Spring,helical,compression
Mission Systems Orchard Park Inc
5133-01-662-480921042 INTERCHANGEABLE
Countersink
Keo Cutters Div of Masco Corp
Cross-Reference Index
Part NumberManufacturer
H12-0002-203 L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications (USA)
21042ADX Airdale Express Llc Div Airdale Express (USA)
21042 Federal Screw Products, Inc. (USA)
Related Parts
5330-00-292-0490INTERCHANGEABLE
SEAL,PLAIN ENCASED
3950-00-463-5259INTERCHANGEABLE
CAM,BRAKE
4330-01-040-5516INTERCHANGEABLE
FILTER ELEMENT,FLUID
921042
5930-01-075-0224INTERCHANGEABLE
SWITCH,ROTARY
5330-01-168-5401INTERCHANGEABLE
SEAL
5330-01-207-7354INTERCHANGEABLE
GASKET
21042
5355-01-242-4976INTERCHANGEABLE
KNOB
2-104-2
4720-01-464-2492INTERCHANGEABLE
HOSE,PREFORMED
21042
5360-01-592-1876INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
21042
5133-01-662-4809INTERCHANGEABLE
COUNTERSINK
21042

Frequently Asked Questions

What is NSN 5305-01-212-3451?

NSN 5305-01-212-3451 is a Screw,machine, manufactured by L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-212-3451?

NSN 5305-01-212-3451 has 3 cross-referenced part numbers: H12-0002-203 (L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications), 21042ADX (Airdale Express Llc Div Airdale Express), 21042 (Federal Screw Products, Inc.).

What NSN replaces 5305-01-212-3451?

There are 10 known substitutes for 5305-01-212-3451: 5330-00-292-0490, 3950-00-463-5259, 4330-01-040-5516 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of H12-0002-203?

Key specifications for H12-0002-203: Head Height: 0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN; Thread Quantity Per Inch: 32; Nominal Thread Diameter: 0.138 INCHES IN; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC). 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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