PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

72160Screw,cap,socket Head

H-K Connecticut Holding Company · NSN 5305-01-226-6740 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-226-6740 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-226-6740. Primary manufacturer part number: 72160.
Features
  • Screw,cap,socket Head — FSC 5305
  • Fastener Length: 1.250 INCHES NOMINAL IN
  • Width Across Flats: 0.312 INCHES NOMINAL IN
  • Internal Drive Style: HEXAGON
  • Surface Treatment: PHOSPHATE ZINC OVERALL
  • Material: STEEL OVERALL
  • Head Height: 0.400 INCHES NOMINAL IN
  • Thread Class: 3A A
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-226-6740, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is H-K Connecticut Holding Company. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-226-6740
Primary Part Number72160
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerH-K Connecticut Holding Company
StatusACTIVE
Fastener Length1.250 INCHES NOMINAL IN
Width Across Flats0.312 INCHES NOMINAL IN
Internal Drive StyleHEXAGON
Surface TreatmentPHOSPHATE ZINC OVERALL
MaterialSTEEL OVERALL
Head Height0.400 INCHES NOMINAL IN
Thread Class3A A
Thread DirectionRIGHT-HAND
Head StyleFLAT CHAMFER
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Nominal Thread Diameter0.375 INCHES IN
Head Diameter0.562 INCHES NOMINAL IN
Thread Quantity Per Inch16
Thread Length1.125 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
6160-00-369-241140568 INTERCHANGEABLE
Liner,battery Box-Battery Tray
Enersys Corporation Div Motive Power National Accounts
5950-00-646-4441SMB199862 INTERCHANGEABLE
Coil,telephone
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
9540-00-684-6322 INTERCHANGEABLE
Beam,structural
6105-00-829-908672160 INTERCHANGEABLE
Fan Assy,motor
Mas Components & Coatings, Llc Dba Mas Components & Coatings Llc
9540-01-071-1354 INTERCHANGEABLE
Beam,structural
9540-01-071-2149 INTERCHANGEABLE
Beam,structural
5961-01-074-2230 INTERCHANGEABLE
Transistor
5905-01-185-9354311-1214-00 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
Tektronix, Inc.
8145-01-251-7334 INTERCHANGEABLE
Shipping and Storage Container,t
5998-01-430-9372161456038 INTERCHANGEABLE
Circuit Card Assembly
Imi Cornelius Inc.
Cross-Reference Index
Part NumberManufacturer
11579774 Army, United States Department of the Dba Watervliet Arsenal Div Business Development (USA)
72160 PRIMARY H-K Connecticut Holding Company (USA)
40568 Allen Mfg Co Sub of Chicago Pneumatic Tool Co (USA)
Related Parts
6160-00-369-2411INTERCHANGEABLE
LINER,BATTERY BOX-BATTERY TRAY
40568
5950-00-646-4441INTERCHANGEABLE
COIL,TELEPHONE
SMB199862
9540-00-684-6322INTERCHANGEABLE
BEAM,STRUCTURAL
6105-00-829-9086INTERCHANGEABLE
FAN ASSY,MOTOR
72160
9540-01-071-1354INTERCHANGEABLE
BEAM,STRUCTURAL
9540-01-071-2149INTERCHANGEABLE
BEAM,STRUCTURAL
5961-01-074-2230INTERCHANGEABLE
TRANSISTOR
5905-01-185-9354INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
311-1214-00
8145-01-251-7334INTERCHANGEABLE
SHIPPING AND STORAGE CONTAINER,T
5998-01-430-9372INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
161456038
5120-01-445-7606INTERCHANGEABLE
GUIDE,PIN
72160

Frequently Asked Questions

What is NSN 5305-01-226-6740?

NSN 5305-01-226-6740 is a Screw,cap,socket Head, manufactured by H-K Connecticut Holding Company, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-226-6740?

NSN 5305-01-226-6740 has 3 cross-referenced part numbers: 11579774 (Army, United States Department of the Dba Watervliet Arsenal Div Business Development), 72160 (H-K Connecticut Holding Company), 40568 (Allen Mfg Co Sub of Chicago Pneumatic Tool Co).

What NSN replaces 5305-01-226-6740?

There are 11 known substitutes for 5305-01-226-6740: 6160-00-369-2411, 5950-00-646-4441, 9540-00-684-6322 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 72160?

Key specifications for 72160: Fastener Length: 1.250 INCHES NOMINAL IN; Width Across Flats: 0.312 INCHES NOMINAL IN; End Item Identification: HOWITZER;HOWITZER, MEDIUM, TOWED, 155MM MM; Internal Drive Style: HEXAGON. 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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