PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

120677Screw,cap,hexagon Head

General Motors Corp · NSN 5305-00-012-0677 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-012-0677 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-012-0677. Primary manufacturer part number: 120677.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Fastener Length: 1.500 INCHES NOMINAL IN
  • Minimum Tensile Strength: 69000 POUNDS PER SQUARE INCH LBS
  • Width Between Flats: 0.562 INCHES NOMINAL IN
  • Thread Length: 1.000 INCHES MINIMUM IN
  • Hardness Rating: 100.0 ROCKWELL B MAXIMUM OVERALL
  • Material: STEEL OVERALL
  • Surface Treatment: CADMIUM OVERALL
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 5305-00-012-0677, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is General Motors Corp. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 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
NSN5305-00-012-0677
Primary Part Number120677
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerGeneral Motors Corp
StatusACTIVE
Fastener Length1.500 INCHES NOMINAL IN
Minimum Tensile Strength69000 POUNDS PER SQUARE INCH LBS
Width Between Flats0.562 INCHES NOMINAL IN
Thread Length1.000 INCHES MINIMUM IN
Hardness Rating100.0 ROCKWELL B MAXIMUM OVERALL
MaterialSTEEL OVERALL
Surface TreatmentCADMIUM OVERALL
Nondefinitive Spec/std Data2 TYPE AND 10P STYLE AND 2 GRADE
Head Height0.234 INCHES NOMINAL IN
Nominal Thread Diameter0.375 INCHES IN
Thread Quantity Per Inch24
Thread Series DesignatorUNF
Head StyleHEXAGON
Thread Class2A A
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4440-00-446-3107100-0818 INTERCHANGEABLE
Cartridge,drier
Aerodri Corp Keco Industries Inc Div
5310-01-582-40641000818 INTERCHANGEABLE
Nut,plain,hexagon
General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp
5330-01-626-2824 INTERCHANGEABLE
Parts Kit,seal Replacement,mecha
Cross-Reference Index
Part NumberManufacturer
120677 General Motors Corp (USA)
42S5ETABLEVIII Federal Specifications Promulgated by General Services Administration Washington DC (USA)
120677 General Motors Llc Dba General Motors Llc (USA)
FFS85TYPE2STYLE10PGRADE2 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
120677 Diamond Reo Truck Co (USA)
1000-818 Kaitlin Corp (USA)
Related Parts
4440-00-446-3107INTERCHANGEABLE
CARTRIDGE,DRIER
100-0818
5310-01-582-4064INTERCHANGEABLE
NUT,PLAIN,HEXAGON
1000818
5330-01-626-2824INTERCHANGEABLE
PARTS KIT,SEAL REPLACEMENT,MECHA

Frequently Asked Questions

What is NSN 5305-00-012-0677?

NSN 5305-00-012-0677 is a Screw,cap,hexagon Head, manufactured by General Motors Corp, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-012-0677?

NSN 5305-00-012-0677 has 6 cross-referenced part numbers: 120677 (General Motors Corp), 42S5ETABLEVIII (Federal Specifications Promulgated by General Services Administration Washington DC), 120677 (General Motors Llc Dba General Motors Llc), FFS85TYPE2STYLE10PGRADE2 (Federal Specifications Promulgated by General Services Administration Washington DC), 120677 (Diamond Reo Truck Co) and 1 more.

What NSN replaces 5305-00-012-0677?

There are 3 known substitutes for 5305-00-012-0677: 4440-00-446-3107, 5310-01-582-4064, 5330-01-626-2824. Verify interchangeability with system specifications before substitution.

What are the specifications of 120677?

Key specifications for 120677: Fastener Length: 1.500 INCHES NOMINAL IN; Minimum Tensile Strength: 69000 POUNDS PER SQUARE INCH LBS; Width Between Flats: 0.562 INCHES NOMINAL IN; Thread Length: 1.000 INCHES MINIMUM IN. 15 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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