PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FFS85TYPE2STYLE10PGRADE10R2Screw,cap,hexagon Head

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5305-00-010-0172 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-010-0172 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-010-0172. Primary manufacturer part number: FFS85TYPE2STYLE10PGRADE10R2.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Thread Class: 2A A
  • Material Document and Classification: SAE GR 1 OR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Minimum Yield Strength: 52000 POUNDS PER SQUARE INCH LBS
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Hardness Rating: 95.5 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL
  • Material: STEEL OVERALL
  • Thread Quantity Per Inch: 12
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 5305-00-010-0172, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 15 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-010-0172
Primary Part NumberFFS85TYPE2STYLE10PGRADE10R2
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
Thread Class2A A
Material Document and ClassificationSAE GR 1 OR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Minimum Yield Strength52000 POUNDS PER SQUARE INCH LBS
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Hardness Rating95.5 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL
MaterialSTEEL OVERALL
Thread Quantity Per Inch12
Fastener Length1.500 INCHES NOMINAL IN
Nominal Thread Diameter0.562 INCHES IN
Head StyleHEXAGON
Minimum Tensile Strength55000 POUNDS PER SQUARE INCH LBS
Width Between Flats0.798 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN
Head Height0.348 INCHES MINIMUM AND 0.371 INCHES MAXIMUM IN
Thread Length1.281 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5305-00-010-0143 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-00-010-0167 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-00-010-0168 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-00-010-0174 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-00-021-7047 INTERCHANGEABLE
Screw,cap,hexagon Head
Cross-Reference Index
Part NumberManufacturer
FFS85TYPE2STYLE10PGRADE10R2 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5305-00-010-0143INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-00-010-0167INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-00-010-0168INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-00-010-0174INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-00-021-7047INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD

Frequently Asked Questions

What is NSN 5305-00-010-0172?

NSN 5305-00-010-0172 is a Screw,cap,hexagon Head, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-010-0172?

NSN 5305-00-010-0172 has 1 cross-referenced part number: FFS85TYPE2STYLE10PGRADE10R2 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5305-00-010-0172?

There are 5 known substitutes for 5305-00-010-0172: 5305-00-010-0143, 5305-00-010-0167, 5305-00-010-0168 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FFS85TYPE2STYLE10PGRADE10R2?

Key specifications for FFS85TYPE2STYLE10PGRADE10R2: Thread Class: 2A A; Material Document and Classification: SAE GR 1 OR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Special Features: 2ND REPLY FOR MINIMUM TENSILE STRENGTH,64000 PSI; Minimum Yield Strength: 52000 POUNDS PER SQUARE INCH LBS. 16 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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