PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

950-90Setscrew

Elbitamerica, Inc. · NSN 5305-00-546-4423 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-546-4423 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-546-4423. Primary manufacturer part number: 950-90.
Features
  • Setscrew — FSC 5305
  • Internal Drive Style: SLOT
  • Thread Length: 0.325 INCHES MINIMUM IN
  • Material: COPPER ALLOY 360 OVERALL
  • Thread Series Designator: UNF
  • Head Style: FLAT CHAMFER
  • Head Diameter: 0.132 INCHES MINIMUM AND 0.137 INCHES MAXIMUM IN
  • Nominal Thread Diameter: 0.086 INCHES IN
Applications
  • Applications requiring Copper Alloy 360 Overall construction
General Description

The Setscrew, cataloged under National Stock Number 5305-00-546-4423, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Elbitamerica, Inc.. 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-546-4423
Primary Part Number950-90
Item NameSetscrew
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerElbitamerica, Inc.
StatusACTIVE
Internal Drive StyleSLOT
Thread Length0.325 INCHES MINIMUM IN
MaterialCOPPER ALLOY 360 OVERALL
Thread Series DesignatorUNF
Head StyleFLAT CHAMFER
Head Diameter0.132 INCHES MINIMUM AND 0.137 INCHES MAXIMUM IN
Nominal Thread Diameter0.086 INCHES IN
Point Length0.325 INCHES NOMINAL IN
Point Diameter0.052 INCHES MINIMUM AND 0.058 INCHES MAXIMUM IN
Thread Quantity Per Inch64
Point StyleDOG
Fastener Length0.650 INCHES NOMINAL IN
Thread Class2A A
Thread DirectionRIGHT-HAND
Head Height0.054 INCHES MINIMUM AND 0.059 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5950-00-004-499695090 INTERCHANGEABLE
Transformer,power
Hammond Mfg Co Ltd
6610-00-243-2099 INTERCHANGEABLE
Indicator,heading,gyroscopic
1620-00-370-717295090 INTERCHANGEABLE
End
Northrop Grumman Systems Corporation
4820-00-981-8917 INTERCHANGEABLE
Disk,valve
2920-01-104-8950M018225043 INTERCHANGEABLE
Coil and Jumper Ass
Prestolite Electric Inc
5340-01-197-16337K-6417 INTERCHANGEABLE
Strap,retaining
Caterpillar Inc Div Caterpillar Defense
3030-01-259-227995090 INTERCHANGEABLE
Belt,positive Drive
Carlisle Power Transmission Products Inc
Cross-Reference Index
Part NumberManufacturer
950-90 PRIMARY Elbitamerica, Inc. (USA)
950-90 Carp Industries Corp Dba Carp Coastal Marine & Rv (USA)
Related Parts
5950-00-004-4996INTERCHANGEABLE
TRANSFORMER,POWER
95090
6610-00-243-2099INTERCHANGEABLE
INDICATOR,HEADING,GYROSCOPIC
1620-00-370-7172INTERCHANGEABLE
END
95090
4820-00-981-8917INTERCHANGEABLE
DISK,VALVE
2920-01-104-8950INTERCHANGEABLE
COIL AND JUMPER ASS
M018225043
5340-01-197-1633INTERCHANGEABLE
STRAP,RETAINING
7K-6417
3030-01-259-2279INTERCHANGEABLE
BELT,POSITIVE DRIVE
95090

Frequently Asked Questions

What is NSN 5305-00-546-4423?

NSN 5305-00-546-4423 is a Setscrew, manufactured by Elbitamerica, Inc., classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-546-4423?

NSN 5305-00-546-4423 has 2 cross-referenced part numbers: 950-90 (Elbitamerica, Inc.), 950-90 (Carp Industries Corp Dba Carp Coastal Marine & Rv).

What NSN replaces 5305-00-546-4423?

There are 7 known substitutes for 5305-00-546-4423: 5950-00-004-4996, 6610-00-243-2099, 1620-00-370-7172 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 950-90?

Key specifications for 950-90: Internal Drive Style: SLOT; Thread Length: 0.325 INCHES MINIMUM IN; Material: COPPER ALLOY 360 OVERALL; 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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