PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

306-40187Screw,cap,hexagon Head

Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division · NSN 5305-01-080-6620 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-080-6620 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-080-6620. Primary manufacturer part number: 306-40187.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Head Height: 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
  • Head Style: HEXAGON
  • Width Between Flats: 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Material: STEEL OVERALL
  • Nominal Thread Diameter: 0.250 INCHES IN
  • Thread 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,hexagon Head, cataloged under National Stock Number 5305-01-080-6620, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division. Government technical data includes 11 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-080-6620
Primary Part Number306-40187
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division
StatusACTIVE
Head Height0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
Head StyleHEXAGON
Width Between Flats0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
MaterialSTEEL OVERALL
Nominal Thread Diameter0.250 INCHES IN
Thread Length0.750 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Thread Quantity Per Inch20
Thread Class2A A
Fastener Length2.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-00-003-928050141S INTERCHANGEABLE
Seal,plain Encased
Federal-Mogul Corp Government Sales Dept
5325-00-025-2238295309 INTERCHANGEABLE
Receptacle,positive Lock
Monadnock Company, the Dba Lisi Aerospace
Cross-Reference Index
Part NumberManufacturer
29530-9 Danfoss Inc (USA)
306-40187 PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division (USA)
29530-9 Danfoss Fluid Power Inc Racine Opn (USA)
Related Parts
5330-00-003-9280INTERCHANGEABLE
SEAL,PLAIN ENCASED
50141S
5325-00-025-2238INTERCHANGEABLE
RECEPTACLE,POSITIVE LOCK
295309

Frequently Asked Questions

What is NSN 5305-01-080-6620?

NSN 5305-01-080-6620 is a Screw,cap,hexagon Head, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-080-6620?

NSN 5305-01-080-6620 has 3 cross-referenced part numbers: 29530-9 (Danfoss Inc), 306-40187 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division), 29530-9 (Danfoss Fluid Power Inc Racine Opn).

What NSN replaces 5305-01-080-6620?

There are 2 known substitutes for 5305-01-080-6620: 5330-00-003-9280, 5325-00-025-2238. Verify interchangeability with system specifications before substitution.

What are the specifications of 306-40187?

Key specifications for 306-40187: Head Height: 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN; Head Style: HEXAGON; Width Between Flats: 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC). 11 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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