PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A202Screw,machine

Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. · NSN 5305-00-439-9844 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-439-9844 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-439-9844. Primary manufacturer part number: A202.
Features
  • Screw,machine — FSC 5305
  • Screw Material: STEEL COMP 8735 OR STEEL COMP 4640 OR STEEL COMP 6150
  • Head Style: FILLISTER
  • Internal Drive Style: CROSS RECESS TYPE 1
  • Nominal Thread Diameter: 0.250 INCHES IN
  • Screw Surface Treatment: CADMIUM
  • Head Diameter: 0.375 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 20
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-439-9844, 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 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-439-9844
Primary Part NumberA202
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerPratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
StatusACTIVE
Screw MaterialSTEEL COMP 8735 OR STEEL COMP 4640 OR STEEL COMP 6150
Head StyleFILLISTER
Internal Drive StyleCROSS RECESS TYPE 1
Nominal Thread Diameter0.250 INCHES IN
Screw Surface TreatmentCADMIUM
Head Diameter0.375 INCHES NOMINAL IN
Thread Quantity Per Inch20
Thread DirectionRIGHT-HAND
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread Length0.562 INCHES MAXIMUM IN
Thread Class3A A
Fastener Length0.562 INCHES NOMINAL IN
Head Height0.203 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
2920-00-239-9047A202 INTERCHANGEABLE
Adapter,spark Plug
Champion Aerospace Llc
6810-00-268-9951 INTERCHANGEABLE
Nitric Acid,fuming
1560-00-656-3572A202 INTERCHANGEABLE
Fitting,quick Disconnect,restrai
Rbc Aerostructures Llc
4930-00-789-7874A202 INTERCHANGEABLE
Seal Assembly,pump
WS Darley & Co Div Ohler Pump
8010-00-886-7681 INTERCHANGEABLE
Remover,paint
6850-01-008-3058A202 INTERCHANGEABLE
Chemical Corrosion Prevention
The Noco Company
5950-01-139-0123A-202 INTERCHANGEABLE
Transformer,radio Frequency
Communication Coil, Inc. Div -
5935-01-205-4843A202 INTERCHANGEABLE
Adapter,connector
Fotec Inc
5998-01-255-9202 INTERCHANGEABLE
Electronic Components Assembly
Cross-Reference Index
Part NumberManufacturer
202 Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
A202 PRIMARY Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
Related Parts
2920-00-239-9047INTERCHANGEABLE
ADAPTER,SPARK PLUG
A202
6810-00-268-9951INTERCHANGEABLE
NITRIC ACID,FUMING
1560-00-656-3572INTERCHANGEABLE
FITTING,QUICK DISCONNECT,RESTRAI
A202
4930-00-789-7874INTERCHANGEABLE
SEAL ASSEMBLY,PUMP
A202
8010-00-886-7681INTERCHANGEABLE
REMOVER,PAINT
6850-01-008-3058INTERCHANGEABLE
CHEMICAL CORROSION PREVENTION
A202
5950-01-139-0123INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
A-202
5935-01-205-4843INTERCHANGEABLE
ADAPTER,CONNECTOR
A202
5998-01-255-9202INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY

Frequently Asked Questions

What is NSN 5305-00-439-9844?

NSN 5305-00-439-9844 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 5305-00-439-9844?

NSN 5305-00-439-9844 has 2 cross-referenced part numbers: 202 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.), A202 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).

What NSN replaces 5305-00-439-9844?

There are 9 known substitutes for 5305-00-439-9844: 2920-00-239-9047, 6810-00-268-9951, 1560-00-656-3572 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A202?

Key specifications for A202: Screw Material: STEEL COMP 8735 OR STEEL COMP 4640 OR STEEL COMP 6150; Head Style: FILLISTER; Internal Drive Style: CROSS RECESS TYPE 1; Nominal Thread Diameter: 0.250 INCHES IN. 13 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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