PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S1601Screw,cap,hexagon Head

Caterpillar Inc Div Caterpillar Defense · NSN 5305-00-260-4511 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-260-4511 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-260-4511. Primary manufacturer part number: S1601.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • 5 verified cross-references
  • Primary manufacturer: Caterpillar Inc Div Caterpillar Defense
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-260-4511, 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. This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameScrew,cap,hexagon Head
FSC / FSG5305 — No Item Name Available (FSG 53)
ManufacturersMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M (CAGE 81349); Caterpillar Inc Div Caterpillar Defense (CAGE 11083); Pettibone Westrac (CAGE 14544)
Technical Specifications
ParameterValue
NSN5305-00-260-4511
Primary Part NumberS1601
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
2805-00-494-3585 INTERCHANGEABLE
Valve,poppet,engine
4240-01-481-5532S-1601 INTERCHANGEABLE
Spreader Arms
Power Hawk Technologies, Inc.
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-1222 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILS1222 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
0S1601 Caterpillar Inc Div Caterpillar Defense (USA)
S1601 Pettibone Westrac (USA)
S1601 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
2805-00-494-3585INTERCHANGEABLE
VALVE,POPPET,ENGINE
4240-01-481-5532INTERCHANGEABLE
SPREADER ARMS
S-1601

Frequently Asked Questions

What is NSN 5305-00-260-4511?

NSN 5305-00-260-4511 is a Screw,cap,hexagon Head, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-260-4511?

NSN 5305-00-260-4511 has 5 cross-referenced part numbers: MIL-DTL-1222 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MILS1222 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 0S1601 (Caterpillar Inc Div Caterpillar Defense), S1601 (Pettibone Westrac), S1601 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 5305-00-260-4511?

There are 2 known substitutes for 5305-00-260-4511: 2805-00-494-3585, 4240-01-481-5532. Verify interchangeability with system specifications before substitution.

Is NSN 5305-00-260-4511 still in active supply?

NSN 5305-00-260-4511 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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