PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

121893Screw,cap,hexagon Head

Rolls-Royce Solutions America Inc · NSN 5305-00-012-1893 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-012-1893 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-012-1893. Primary manufacturer part number: 121893.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Head Style: HEXAGON
  • Width Between Flats: 0.438 INCHES NOMINAL IN
  • Fastener Length: 0.875 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Hardness Rating: 100.0 ROCKWELL B MAXIMUM OVERALL
  • Nondefinitive Spec/std Data: 2 TYPE AND 10P STYLE AND 2 GRADE
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
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 5305-00-012-1893, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rolls-Royce Solutions America Inc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 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
NSN5305-00-012-1893
Primary Part Number121893
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerRolls-Royce Solutions America Inc
StatusCANCELLED
Head StyleHEXAGON
Width Between Flats0.438 INCHES NOMINAL IN
Fastener Length0.875 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Hardness Rating100.0 ROCKWELL B MAXIMUM OVERALL
Nondefinitive Spec/std Data2 TYPE AND 10P STYLE AND 2 GRADE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Nominal Thread Diameter0.250 INCHES IN
Head Height0.156 INCHES NOMINAL IN
Surface TreatmentCADMIUM OVERALL
Thread DirectionRIGHT-HAND
Thread Quantity Per Inch20
Thread Length0.750 INCHES MINIMUM IN
Thread Class2A A
Minimum Tensile Strength69000 POUNDS PER SQUARE INCH LBS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
2910-00-693-0206C52-25-43 INTERCHANGEABLE
Jet
Zenith Fuel Systems Llc
2930-00-953-56018122R INTERCHANGEABLE
Pump,cooling System,engine
Elgin Industries Inc. Dba
3020-01-551-0966121893 INTERCHANGEABLE
Gear,bevel
Dana Commercial Vehicle Products, Llc
Cross-Reference Index
Part NumberManufacturer
121893 General Motors Corp (USA)
AW756 Hobart Bros Co (USA)
FFS85TYPE2STYLE10PGRADE2 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
121893 General Motors Llc Dba General Motors Llc (USA)
BCVX2AK1 CAGE 00000
121893 PRIMARY Rolls-Royce Solutions America Inc (USA)
121893 Diamond Reo Truck Co (USA)
Related Parts
2910-00-693-0206INTERCHANGEABLE
JET
C52-25-43
2930-00-953-5601INTERCHANGEABLE
PUMP,COOLING SYSTEM,ENGINE
8122R
3020-01-551-0966INTERCHANGEABLE
GEAR,BEVEL
121893

Frequently Asked Questions

What is NSN 5305-00-012-1893?

NSN 5305-00-012-1893 is a Screw,cap,hexagon Head, manufactured by Rolls-Royce Solutions America Inc, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-012-1893?

NSN 5305-00-012-1893 has 7 cross-referenced part numbers: 121893 (General Motors Corp), AW756 (Hobart Bros Co), FFS85TYPE2STYLE10PGRADE2 (Federal Specifications Promulgated by General Services Administration Washington DC), 121893 (General Motors Llc Dba General Motors Llc), BCVX2AK1 and 2 more.

What NSN replaces 5305-00-012-1893?

There are 3 known substitutes for 5305-00-012-1893: 2910-00-693-0206, 2930-00-953-5601, 3020-01-551-0966. Verify interchangeability with system specifications before substitution.

What are the specifications of 121893?

Key specifications for 121893: Head Style: HEXAGON; Width Between Flats: 0.438 INCHES NOMINAL IN; Fastener Length: 0.875 INCHES NOMINAL IN; Material: STEEL OVERALL. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-012-1893 still in active supply?

NSN 5305-00-012-1893 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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