PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8427Screw,machine

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 5305-00-147-6507 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-147-6507 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-147-6507. Primary manufacturer part number: 8427.
Features
  • Screw,machine — FSC 5305
  • Internal Drive Style: SLOT
  • Hole Quantity: 2
  • Thread Length: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
  • Thread Series Designator: UNF
  • Head Diameter: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
  • Thread Quantity Per Inch: 28
  • Nominal Thread Diameter: 0.250 INCHES IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-147-6507, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 15 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-147-6507
Primary Part Number8427
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Internal Drive StyleSLOT
Hole Quantity2
Thread Length0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
Thread Series DesignatorUNF
Head Diameter0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
Thread Quantity Per Inch28
Nominal Thread Diameter0.250 INCHES IN
Head StyleFILLISTER
Fastener Length0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Head Hole Configuration StyleROUND
Hole Diameter0.078 INCHES NOMINAL IN
Screw MaterialSTEEL COMP 4640 OR STEEL COMP 8735 OR STEEL COMP 6150
Thread Class3A A
Head Height0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
6145-00-336-82578106900 INTERCHANGEABLE
Cable,special Purpose,electrical
Us Army Aviation and Missile Command
5910-00-478-4155 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
5340-00-498-05318427 INTERCHANGEABLE
Standoff,threaded,spacing
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
3030-00-588-007813431 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
5935-00-897-935130384-1 INTERCHANGEABLE
Connector,receptacle,electrical
Microwave Devices Inc
4820-01-089-334084-27 INTERCHANGEABLE
Valve,bleeder,hydraulic System
Cmbf, Llc Dba Cmbf Llc
4720-01-145-9522F101921 INTERCHANGEABLE
Tubing Assembly,nonmetallic
Tld Wollard Llc
5310-01-258-1537NC-230 INTERCHANGEABLE
Washer,flat
Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
5999-01-432-0922 INTERCHANGEABLE
Mounting Pad,electrical-Electron
5999-01-462-9954741117A00 INTERCHANGEABLE
Mounting Pad,electrical-Electron
L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.
Cross-Reference Index
Part NumberManufacturer
8427 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
8427 Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
Related Parts
6145-00-336-8257INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
8106900
5910-00-478-4155INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
5340-00-498-0531INTERCHANGEABLE
STANDOFF,THREADED,SPACING
8427
3030-00-588-0078INTERCHANGEABLE
BELT,V
13431
5935-00-897-9351INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
30384-1
4820-01-089-3340INTERCHANGEABLE
VALVE,BLEEDER,HYDRAULIC SYSTEM
84-27
4720-01-145-9522INTERCHANGEABLE
TUBING ASSEMBLY,NONMETALLIC
F101921
5310-01-258-1537INTERCHANGEABLE
WASHER,FLAT
NC-230
5999-01-432-0922INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
5999-01-462-9954INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
741117A00
5365-01-470-0857INTERCHANGEABLE
SPACER,SLEEVE
8427

Frequently Asked Questions

What is NSN 5305-00-147-6507?

NSN 5305-00-147-6507 is a Screw,machine, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-147-6507?

NSN 5305-00-147-6507 has 2 cross-referenced part numbers: 8427 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 8427 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).

What NSN replaces 5305-00-147-6507?

There are 11 known substitutes for 5305-00-147-6507: 6145-00-336-8257, 5910-00-478-4155, 5340-00-498-0531 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8427?

Key specifications for 8427: Internal Drive Style: SLOT; Hole Quantity: 2; Thread Length: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN; Thread Series Designator: UNF. 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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