PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18185Screw,machine

Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. · NSN 5305-00-532-7805 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-532-7805 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-532-7805. Primary manufacturer part number: 18185.
Features
  • Screw,machine — FSC 5305
  • Thread Class: 3A A
  • Fastener Length: 1.094 INCHES NOMINAL IN
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Head Diameter: 0.500 INCHES NOMINAL IN
  • Nominal Thread Diameter: 0.312 INCHES IN
  • Thread Length: 0.750 INCHES MINIMUM IN
  • Internal Drive Style: CROSS RECESS TYPE 1
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-532-7805, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-532-7805
Primary Part Number18185
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerPratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
StatusACTIVE
Thread Class3A A
Fastener Length1.094 INCHES NOMINAL IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Head Diameter0.500 INCHES NOMINAL IN
Nominal Thread Diameter0.312 INCHES IN
Thread Length0.750 INCHES MINIMUM IN
Internal Drive StyleCROSS RECESS TYPE 1
Screw Material Document and ClassificationAMS 6322 ASSN STD SINGLE MATERIAL RESPONSE
Thread Quantity Per Inch18
Head StyleFILLISTER
Screw MaterialSTEEL COMP 8740
Thread DirectionRIGHT-HAND
Head Height0.188 INCHES NOMINAL IN
Head Surface TreatmentCADMIUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5961-00-934-2999 INTERCHANGEABLE
Transistor
6615-01-014-199318185 INTERCHANGEABLE
Control,altitude,automatic Pilot
Elbitamerica, Inc.
5815-01-169-0182 INTERCHANGEABLE
Holder,tape Guide
4310-01-516-944618185 INTERCHANGEABLE
Diaphragm,pump,special Shaped
Coffin Turbo Pump Inc
6515-01-572-453918185 INTERCHANGEABLE
Accelerator,lr White Resin
Ted Pella, Inc. Dba Ted Pella Inc
Cross-Reference Index
Part NumberManufacturer
18185 PRIMARY Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
18185 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
5961-00-934-2999INTERCHANGEABLE
TRANSISTOR
6615-01-014-1993INTERCHANGEABLE
CONTROL,ALTITUDE,AUTOMATIC PILOT
18185
5815-01-169-0182INTERCHANGEABLE
HOLDER,TAPE GUIDE
4310-01-516-9446INTERCHANGEABLE
DIAPHRAGM,PUMP,SPECIAL SHAPED
18185
6515-01-572-4539INTERCHANGEABLE
ACCELERATOR,LR WHITE RESIN
18185

Frequently Asked Questions

What is NSN 5305-00-532-7805?

NSN 5305-00-532-7805 is a Screw,machine, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-532-7805?

NSN 5305-00-532-7805 has 2 cross-referenced part numbers: 18185 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.), 18185 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 5305-00-532-7805?

There are 5 known substitutes for 5305-00-532-7805: 5961-00-934-2999, 6615-01-014-1993, 5815-01-169-0182 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18185?

Key specifications for 18185: Thread Class: 3A A; Fastener Length: 1.094 INCHES NOMINAL IN; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Head Diameter: 0.500 INCHES NOMINAL IN. 14 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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