PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

221-1194Washer,flat

Caterpillar Inc Div Caterpillar Defense · NSN 5310-01-600-3912 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-600-3912 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-600-3912. Primary manufacturer part number: 221-1194.
Features
  • Washer,flat — FSC 5310
  • 3 verified cross-references
  • Primary manufacturer: Caterpillar Inc Div Caterpillar Defense
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-600-3912, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-600-3912
Primary Part Number221-1194
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5945-00-082-9541A2211192G2 INTERCHANGEABLE
Relay,electromagnetic
L3harris Technologies, Inc.
Cross-Reference Index
Part NumberManufacturer
221-1194 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
10KP427 Oshkosh Corp (USA)
10KP427 Oshkosh Defense Llc (USA)
Related Parts
5945-00-082-9541INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
A2211192G2

Frequently Asked Questions

What is NSN 5310-01-600-3912?

NSN 5310-01-600-3912 is a Washer,flat, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-600-3912?

NSN 5310-01-600-3912 has 3 cross-referenced part numbers: 221-1194 (Caterpillar Inc Div Caterpillar Defense), 10KP427 (Oshkosh Corp), 10KP427 (Oshkosh Defense Llc).

What NSN replaces 5310-01-600-3912?

There is 1 known substitute for 5310-01-600-3912: 5945-00-082-9541. Verify interchangeability with system specifications before substitution.

What are the specifications of 221-1194?

Key specifications for 221-1194: End Item Identification: 2320-01-564-6882 HET (HEAVY EQUIPMENT TRANSPORTER). 1 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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