PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21144Seal Assembly,oil

Dressta North America Ltd · NSN 3805-00-163-2431 · FSC 3805 · No Item Name Available
Verified by PartsTable
NSN 3805-00-163-2431 — this item is cataloged by the U.S. Government under National Stock Number 3805-00-163-2431. Primary manufacturer part number: 21144.
Features
  • Seal Assembly,oil — FSC 3805
  • 4 verified cross-references
  • Primary manufacturer: Dressta North America Ltd
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Seal Assembly,oil, cataloged under National Stock Number 3805-00-163-2431, is classified within Federal Supply Class 3805 (No Item Name Available) of the Construction, Mining, Excavating Equipment group. The primary manufacturer of record is Dressta North America Ltd. This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeal Assembly,oil
FSC / FSG3805 — No Item Name Available (FSG 38)
ManufacturersKomatsu America Corporation (CAGE 23926); Eg and G Sealol Industrial Sealing Div (CAGE 77931); Dressta North America Ltd (CAGE 45RP7)
Technical Specifications
ParameterValue
NSN3805-00-163-2431
Primary Part Number21144
Item NameSeal Assembly,oil
FSC / FSG3805 / 38 — No Item Name Available
ManufacturerDressta North America Ltd
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-121-05606288 INTERCHANGEABLE
Cock,drain
Arvinmeritor Inc
4030-00-125-2858 INTERCHANGEABLE
Wedge,wire Rope Socket
3110-00-155-7363 INTERCHANGEABLE
Bearing,roller,cylindrical
5340-00-170-1883FC5994 INTERCHANGEABLE
Boot,dust and Moisture Seal
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
5305-00-189-894621144 INTERCHANGEABLE
Screw,machine
Eaton Corporation Div Eaton Fluid Power
5306-00-285-3532X04 INTERCHANGEABLE
Bolt,machine
Strong Forge & Fabrication, Llc
5999-00-366-769521-144 INTERCHANGEABLE
Contact,electrical
Eaton Corp Opns & Technical Center
5220-00-476-7954628-8 INTERCHANGEABLE
Gage,setting,pullin
Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace
5360-00-513-1306A21144 INTERCHANGEABLE
Spring,helical,compression
Aerocontrolex Group, Inc. Dba Aero Fluid Products
6520-00-536-435021144 INTERCHANGEABLE
Excavator,dental
Hu-Friedy Mfg. Co., Llc
Cross-Reference Index
Part NumberManufacturer
21144 Komatsu America Corporation (USA)
6288 Eg and G Sealol Industrial Sealing Div (USA)
21144 PRIMARY Dressta North America Ltd (USA)
R21144 Komatsu America Corporation (USA)
Related Parts
4820-00-121-0560INTERCHANGEABLE
COCK,DRAIN
6288
4030-00-125-2858INTERCHANGEABLE
WEDGE,WIRE ROPE SOCKET
3110-00-155-7363INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
5340-00-170-1883INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
FC5994
5305-00-189-8946INTERCHANGEABLE
SCREW,MACHINE
21144
5306-00-285-3532INTERCHANGEABLE
BOLT,MACHINE
X04
5999-00-366-7695INTERCHANGEABLE
CONTACT,ELECTRICAL
21-144
5220-00-476-7954INTERCHANGEABLE
GAGE,SETTING,PULLIN
628-8
5360-00-513-1306INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
A21144
6520-00-536-4350INTERCHANGEABLE
EXCAVATOR,DENTAL
21144
5330-00-584-0159INTERCHANGEABLE
SEAL,PLAIN ENCASED
5895-00-736-8814INTERCHANGEABLE
FAN
A026321

Frequently Asked Questions

What is NSN 3805-00-163-2431?

NSN 3805-00-163-2431 is a Seal Assembly,oil, manufactured by Dressta North America Ltd, classified under FSC 3805 (No Item Name Available). Status: active.

What are the part numbers for NSN 3805-00-163-2431?

NSN 3805-00-163-2431 has 4 cross-referenced part numbers: 21144 (Komatsu America Corporation), 6288 (Eg and G Sealol Industrial Sealing Div), 21144 (Dressta North America Ltd), R21144 (Komatsu America Corporation).

What NSN replaces 3805-00-163-2431?

There are 12 known substitutes for 3805-00-163-2431: 4820-00-121-0560, 4030-00-125-2858, 3110-00-155-7363 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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