PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

0102571Setscrew

Caterpillar Inc Div Caterpillar Defense · NSN 5305-01-104-1051 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-104-1051 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-104-1051. Primary manufacturer part number: 0102571.
Features
  • Setscrew — FSC 5305
  • Thread Class: 3A A
  • Thread Quantity Per Inch: 20
  • Fastener Length: 7.94 MILLIMETERS NOMINAL MM
  • Material Document and Classification: 1E2593 FSCM 11083 MFR REF SINGLE MATERIAL RESPONSE OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Material: STEEL OVERALL
  • Point Style: CUP
Applications
  • Applications requiring Steel Overall construction
General Description

The Setscrew, cataloged under National Stock Number 5305-01-104-1051, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-104-1051
Primary Part Number0102571
Item NameSetscrew
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Thread Class3A A
Thread Quantity Per Inch20
Fastener Length7.94 MILLIMETERS NOMINAL MM
Material Document and Classification1E2593 FSCM 11083 MFR REF SINGLE MATERIAL RESPONSE OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
MaterialSTEEL OVERALL
Point StyleCUP
Head StyleHEADLESS (SETSCREW)
Thread DirectionRIGHT-HAND
Thread Length7.9 MILLIMETERS NOMINAL MM
Nominal Thread Diameter0.250 INCHES IN
Internal Drive StyleHEXAGON
Width Across Flats3.1 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
4730-00-037-4903102-571 INTERCHANGEABLE
Strainer Element,sediment
Hamilton Sundstrand Corporation
5305-00-071-358089-975D INTERCHANGEABLE
Setscrew
Dana Corp Spicer Transmission Div
5935-00-371-937810257-1 INTERCHANGEABLE
Polarizing Key,electrical Connec
Alliant Techsystems Operations Llc Div Defense Electronic Systems
4820-00-699-1550102571 INTERCHANGEABLE
Valve,safety Relief
Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S
5360-00-915-5230102-57-1 INTERCHANGEABLE
Spring,contact
Ward Leonard Ct Llc
5950-01-157-772410-2571 INTERCHANGEABLE
Reactor
Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc
5330-01-207-0277102571 INTERCHANGEABLE
Gasket
Ohio Medical Corporation Dba Ohio Medical Corp Ltd U.k
1005-01-566-0543 INTERCHANGEABLE
Receiver,small Arms
Cross-Reference Index
Part NumberManufacturer
0102571 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
102571 Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
4730-00-037-4903INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
102-571
5305-00-071-3580INTERCHANGEABLE
SETSCREW
89-975D
5935-00-371-9378INTERCHANGEABLE
POLARIZING KEY,ELECTRICAL CONNEC
10257-1
4820-00-699-1550INTERCHANGEABLE
VALVE,SAFETY RELIEF
102571
5360-00-915-5230INTERCHANGEABLE
SPRING,CONTACT
102-57-1
5950-01-157-7724INTERCHANGEABLE
REACTOR
10-2571
5330-01-207-0277INTERCHANGEABLE
GASKET
102571
1005-01-566-0543INTERCHANGEABLE
RECEIVER,SMALL ARMS

Frequently Asked Questions

What is NSN 5305-01-104-1051?

NSN 5305-01-104-1051 is a Setscrew, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-104-1051?

NSN 5305-01-104-1051 has 2 cross-referenced part numbers: 0102571 (Caterpillar Inc Div Caterpillar Defense), 102571 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 5305-01-104-1051?

There are 8 known substitutes for 5305-01-104-1051: 4730-00-037-4903, 5305-00-071-3580, 5935-00-371-9378 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 0102571?

Key specifications for 0102571: Thread Class: 3A A; Thread Quantity Per Inch: 20; Fastener Length: 7.94 MILLIMETERS NOMINAL MM; Material Document and Classification: 1E2593 FSCM 11083 MFR REF SINGLE MATERIAL RESPONSE OVERALL. 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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