PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

44122Screw,cap,socket Head

Safety Socket Llc · NSN 5305-01-591-5734 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-591-5734 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-591-5734. Primary manufacturer part number: 44122.
Features
  • Screw,cap,socket Head — FSC 5305
  • Thread Quantity Per Inch: 18
  • Width Across Flats: 0.250 INCHES NOMINAL IN
  • Nominal Thread Diameter: 0.313 INCHES IN
  • Thread Length: 0.750 INCHES NOMINAL IN
  • Internal Drive Style: HEXAGON
  • Thread Direction: RIGHT-HAND
  • Fastener Length: 0.750 INCHES NOMINAL IN
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 5305-01-591-5734, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Safety Socket Llc. Government technical data includes 13 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-591-5734
Primary Part Number44122
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerSafety Socket Llc
StatusACTIVE
Thread Quantity Per Inch18
Width Across Flats0.250 INCHES NOMINAL IN
Nominal Thread Diameter0.313 INCHES IN
Thread Length0.750 INCHES NOMINAL IN
Internal Drive StyleHEXAGON
Thread DirectionRIGHT-HAND
Fastener Length0.750 INCHES NOMINAL IN
Head Diameter0.457 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN
Head StylePAN NO. 2
Thread Class3A A
Head Height0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
Thread Series DesignatorUNRC
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5930-00-102-565001-865230 INTERCHANGEABLE
Switch,push
Illinois Tool Works Inc Dba Illinois Tool Works Inc Div Illinois Tool Works
5133-00-189-9297 INTERCHANGEABLE
Drill,twist
5950-01-040-412544122 INTERCHANGEABLE
Transformer,power
C&d Technologies, Inc.
7530-01-150-0334 INTERCHANGEABLE
Paper,copying,xerographic Proces
5962-01-364-378844-122 INTERCHANGEABLE
Microcircuit,memory
Celtech Corporation
5910-01-730-824244122 INTERCHANGEABLE
Capacitor,fixed,electrolytic
Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service
Cross-Reference Index
Part NumberManufacturer
44122 PRIMARY Safety Socket Llc (USA)
Related Parts
5930-00-102-5650INTERCHANGEABLE
SWITCH,PUSH
01-865230
5133-00-189-9297INTERCHANGEABLE
DRILL,TWIST
5950-01-040-4125INTERCHANGEABLE
TRANSFORMER,POWER
44122
7530-01-150-0334INTERCHANGEABLE
PAPER,COPYING,XEROGRAPHIC PROCES
5962-01-364-3788INTERCHANGEABLE
MICROCIRCUIT,MEMORY
44-122
5910-01-730-8242INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
44122

Frequently Asked Questions

What is NSN 5305-01-591-5734?

NSN 5305-01-591-5734 is a Screw,cap,socket Head, manufactured by Safety Socket Llc, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-591-5734?

NSN 5305-01-591-5734 has 1 cross-referenced part number: 44122 (Safety Socket Llc).

What NSN replaces 5305-01-591-5734?

There are 6 known substitutes for 5305-01-591-5734: 5930-00-102-5650, 5133-00-189-9297, 5950-01-040-4125 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 44122?

Key specifications for 44122: Thread Quantity Per Inch: 18; Width Across Flats: 0.250 INCHES NOMINAL IN; Nominal Thread Diameter: 0.313 INCHES IN; Thread Length: 0.750 INCHES NOMINAL 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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