PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

121926Screw,cap,hexagon Head

Rolls-Royce Solutions America Inc · NSN 5305-00-012-1926 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-012-1926 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-012-1926. Primary manufacturer part number: 121926.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Material: STEEL OVERALL
  • Minimum Yield Strength: 55000 POUNDS PER SQUARE INCH LBS
  • Hardness Rating: 100.0 ROCKWELL B MAXIMUM OVERALL
  • Thread Length: 0.750 INCHES MINIMUM IN
  • Width Between Flats: 0.438 INCHES NOMINAL IN
  • Head Style: HEXAGON
  • 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 5305-00-012-1926, 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 9 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-012-1926
Primary Part Number121926
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerRolls-Royce Solutions America Inc
StatusACTIVE
MaterialSTEEL OVERALL
Minimum Yield Strength55000 POUNDS PER SQUARE INCH LBS
Hardness Rating100.0 ROCKWELL B MAXIMUM OVERALL
Thread Length0.750 INCHES MINIMUM IN
Width Between Flats0.438 INCHES NOMINAL IN
Head StyleHEXAGON
Surface TreatmentCADMIUM OVERALL
Nondefinitive Spec/std Data2 TYPE AND 10P STYLE AND 2 GRADE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread Quantity Per Inch20
Nominal Thread Diameter0.250 INCHES IN
Thread Class2A A
Thread DirectionRIGHT-HAND
Fastener Length1.500 INCHES NOMINAL IN
Head Height0.156 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5305-00-071-2509AES01C250A50AWA91 INTERCHANGEABLE
Screw,cap,hexagon Head
The American Society of Mechanical Engineers
5305-00-354-475415AC46-47 INTERCHANGEABLE
Setscrew
Fwd Seagrave Holdings Lp
Cross-Reference Index
Part NumberManufacturer
121926 General Motors Corp (USA)
121926 PRIMARY Rolls-Royce Solutions America Inc (USA)
121926 General Motors Llc Dba General Motors Llc (USA)
73-939-23 PRIMARY Kurz & Root Generator Company, Llc (USA)
FFS85TYPE2STYLE10PGRADE2 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
121926 PRIMARY Us Army Aviation and Missile Command (USA)
121926 Vauxhall Aftersales (GBR)
JHP13-391 Hollingsworth John R Co (USA)
PC121926 Power Components (deutschland) Gmbh (DEU)
Related Parts
5305-00-071-2509INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
AES01C250A50AWA91
5305-00-354-4754INTERCHANGEABLE
SETSCREW
15AC46-47

Frequently Asked Questions

What is NSN 5305-00-012-1926?

NSN 5305-00-012-1926 is a Screw,cap,hexagon Head, manufactured by Rolls-Royce Solutions America Inc, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-012-1926?

NSN 5305-00-012-1926 has 9 cross-referenced part numbers: 121926 (General Motors Corp), 121926 (Rolls-Royce Solutions America Inc), 121926 (General Motors Llc Dba General Motors Llc), 73-939-23 (Kurz & Root Generator Company, Llc), FFS85TYPE2STYLE10PGRADE2 (Federal Specifications Promulgated by General Services Administration Washington DC) and 4 more.

What NSN replaces 5305-00-012-1926?

There are 2 known substitutes for 5305-00-012-1926: 5305-00-071-2509, 5305-00-354-4754. Verify interchangeability with system specifications before substitution.

What are the specifications of 121926?

Key specifications for 121926: Material: STEEL OVERALL; Minimum Yield Strength: 55000 POUNDS PER SQUARE INCH LBS; Hardness Rating: 100.0 ROCKWELL B MAXIMUM OVERALL; Thread Length: 0.750 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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