PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12028-12Screw,cap,hexagon Head

Met-Pro Corporation · NSN 5305-00-018-1700 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-018-1700 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-018-1700. Primary manufacturer part number: 12028-12.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Nominal Thread Diameter: 0.500 INCHES IN
  • Hardness Rating: 23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
  • Material: STEEL OVERALL
  • Surface Treatment: CADMIUM OR ZINC OVERALL
  • Fastener Length: 1.500 INCHES NOMINAL IN
  • Thread Series Designator: UNF
  • Head Style: HEXAGON
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-018-1700, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Met-Pro Corporation. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-018-1700
Primary Part Number12028-12
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerMet-Pro Corporation
StatusCANCELLED
Nominal Thread Diameter0.500 INCHES IN
Hardness Rating23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
MaterialSTEEL OVERALL
Surface TreatmentCADMIUM OR ZINC OVERALL
Fastener Length1.500 INCHES NOMINAL IN
Thread Series DesignatorUNF
Head StyleHEXAGON
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
Head Height0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Thread Length1.250 INCHES MINIMUM IN
Thread Class2A A
Width Between Flats0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Thread Quantity Per Inch20
Minimum Tensile Strength120000 POUNDS PER SQUARE INCH LBS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
6620-00-580-3499 INTERCHANGEABLE
Indicator,pressure
5945-01-169-087412-02812-00 INTERCHANGEABLE
Relay,electromagnetic
Compaq Federal Llc
5130-01-400-0137 INTERCHANGEABLE
Socket,socket Wrench
Cross-Reference Index
Part NumberManufacturer
12028-12 Met-Pro Corporation (USA)
1AX60 Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales (AUS)
181700 Navistar International Corporation Dba Navistar (USA)
25088888 Mack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations (USA)
FFS85 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
181700 Diamond Reo Truck Co (USA)
60X3309 Napco International Llc Dba Napco International Inc (USA)
MS35298-113 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
181700 General Motors Corp (USA)
N2251J5X Diamond Reo Truck Co (USA)
1AX60 Mack Trucks Inc Parts Opn (USA)
Related Parts
6620-00-580-3499INTERCHANGEABLE
INDICATOR,PRESSURE
5945-01-169-0874INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
12-02812-00
5130-01-400-0137INTERCHANGEABLE
SOCKET,SOCKET WRENCH

Frequently Asked Questions

What is NSN 5305-00-018-1700?

NSN 5305-00-018-1700 is a Screw,cap,hexagon Head, manufactured by Met-Pro Corporation, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-018-1700?

NSN 5305-00-018-1700 has 11 cross-referenced part numbers: 12028-12 (Met-Pro Corporation), 1AX60 (Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales), 181700 (Navistar International Corporation Dba Navistar), 25088888 (Mack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations), FFS85 (Federal Specifications Promulgated by General Services Administration Washington DC) and 6 more.

What NSN replaces 5305-00-018-1700?

There are 3 known substitutes for 5305-00-018-1700: 6620-00-580-3499, 5945-01-169-0874, 5130-01-400-0137. Verify interchangeability with system specifications before substitution.

What are the specifications of 12028-12?

Key specifications for 12028-12: Nominal Thread Diameter: 0.500 INCHES IN; Hardness Rating: 23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL; Material: STEEL OVERALL; Surface Treatment: CADMIUM OR ZINC OVERALL. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-018-1700 still in active supply?

NSN 5305-00-018-1700 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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