PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2493779Block and Piston Assembly

Ontic Engineering & Manufacturing, Inc Dba Ontic Us · NSN 2995-01-139-7059 · FSC 2995 · No Item Name Available
Verified by PartsTable
NSN 2995-01-139-7059 — this item is cataloged by the U.S. Government under National Stock Number 2995-01-139-7059. Primary manufacturer part number: 2493779.
Features
  • Block and Piston Assembly — FSC 2995
  • 3 verified cross-references
  • Primary manufacturer: Ontic Engineering & Manufacturing, Inc Dba Ontic Us
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Block and Piston Assembly, cataloged under National Stock Number 2995-01-139-7059, is classified within Federal Supply Class 2995 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. 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
NSN2995-01-139-7059
Primary Part Number2493779
Item NameBlock and Piston Assembly
FSC / FSG2995 / 29 — No Item Name Available
ManufacturerOntic Engineering & Manufacturing, Inc Dba Ontic Us
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-365-02062493779 INTERCHANGEABLE
Push on Nut
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
10159211 Nimikkeistokeskus Ncb Finland (FIN)
2493779 Goodrich Corporation Dba Goodrich Corp (USA)
2493779 PRIMARY Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA)
Related Parts
5310-00-365-0206INTERCHANGEABLE
PUSH ON NUT
2493779

Frequently Asked Questions

What is NSN 2995-01-139-7059?

NSN 2995-01-139-7059 is a Block and Piston Assembly, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 2995 (No Item Name Available). Status: active.

What are the part numbers for NSN 2995-01-139-7059?

NSN 2995-01-139-7059 has 3 cross-referenced part numbers: 10159211 (Nimikkeistokeskus Ncb Finland), 2493779 (Goodrich Corporation Dba Goodrich Corp), 2493779 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).

What NSN replaces 2995-01-139-7059?

There is 1 known substitute for 2995-01-139-7059: 5310-00-365-0206. Verify interchangeability with system specifications before substitution.

What are the specifications of 2493779?

Key specifications for 2493779: End Item Identification: ENGINE MODEL F404-GE-400. 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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