PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1566-8Setscrew

Alaco Ladder Company · NSN 5305-00-859-9131 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-859-9131 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-859-9131. Primary manufacturer part number: 1566-8.
Features
  • Setscrew — FSC 5305
  • Point Diameter: 0.348 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
  • Thread Class: 2A A
  • Point Length: 0.625 INCHES NOMINAL IN
  • Thread Length: 2.255 INCHES NOMINAL IN
  • Fastener Length: 2.880 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Alaco Ladder Company
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Setscrew, cataloged under National Stock Number 5305-00-859-9131, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Alaco Ladder Company. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5305-00-859-9131
Primary Part Number1566-8
Item NameSetscrew
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerAlaco Ladder Company
StatusACTIVE
Point Diameter0.348 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
Thread Class2A A
Point Length0.625 INCHES NOMINAL IN
Thread Length2.255 INCHES NOMINAL IN
Fastener Length2.880 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
3120-00-407-679815668 INTERCHANGEABLE
Bearing,sleeve
Leica Inc Surveying and Photogrammetry Systems Div
5998-00-478-05908131 INTERCHANGEABLE
Circuit Card Assembly
Phaostron Instrument and Electronic Company
6685-00-868-8994UH27328 INTERCHANGEABLE
Gage,pressure,dial Indicating
Clayton Manufacturing Company
5360-01-037-7890 INTERCHANGEABLE
Spring
4210-01-058-368915668 INTERCHANGEABLE
Band Assembly M
Tyco Fire Products Lp
5305-01-101-943315668 INTERCHANGEABLE
Screw,cap,socket Head
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5330-01-216-0288 INTERCHANGEABLE
Seal,plain Encased
8145-01-275-564815668 INTERCHANGEABLE
Compressor,shipping and Storage
Naval Inventory Control Point
5330-01-290-4161P49884 INTERCHANGEABLE
Seal,plain
Lexair Inc
5325-01-519-223015668 INTERCHANGEABLE
Ring,retaining
Climax Portable Machine Tools, Inc
Cross-Reference Index
Part NumberManufacturer
1566-8 Alaco Ladder Company (USA)
Related Parts
3120-00-407-6798INTERCHANGEABLE
BEARING,SLEEVE
15668
5998-00-478-0590INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
8131
6685-00-868-8994INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
UH27328
5360-01-037-7890INTERCHANGEABLE
SPRING
4210-01-058-3689INTERCHANGEABLE
BAND ASSEMBLY M
15668
5305-01-101-9433INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
15668
5330-01-216-0288INTERCHANGEABLE
SEAL,PLAIN ENCASED
8145-01-275-5648INTERCHANGEABLE
COMPRESSOR,SHIPPING AND STORAGE
15668
5330-01-290-4161INTERCHANGEABLE
SEAL,PLAIN
P49884
5325-01-519-2230INTERCHANGEABLE
RING,RETAINING
15668
4820-01-622-1033INTERCHANGEABLE
STEM,FLUID VALVE
15668

Frequently Asked Questions

What is NSN 5305-00-859-9131?

NSN 5305-00-859-9131 is a Setscrew, manufactured by Alaco Ladder Company, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-859-9131?

NSN 5305-00-859-9131 has 1 cross-referenced part number: 1566-8 (Alaco Ladder Company).

What NSN replaces 5305-00-859-9131?

There are 11 known substitutes for 5305-00-859-9131: 3120-00-407-6798, 5998-00-478-0590, 6685-00-868-8994 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1566-8?

Key specifications for 1566-8: Special Features: HOLE 0.125 IN. DIA IN POINT IN; Point Diameter: 0.348 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN; Thread Class: 2A A; Point Length: 0.625 INCHES NOMINAL IN. 6 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com