PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

176012-001Seat,valve

Ontic Engineering & Manufacturing, Inc Dba Ontic Us · NSN 4820-01-228-3575 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-228-3575 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-228-3575. Primary manufacturer part number: 176012-001.
Features
  • Seat,valve — FSC 4820
  • 3 verified cross-references
  • Primary manufacturer: Ontic Engineering & Manufacturing, Inc Dba Ontic Us
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-228-3575, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves 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.

Catalog Facts
Item NameSeat,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersOntic Engineering & Manufacturing, Inc Dba Ontic Us (CAGE 45934); Moog Inc Div Moog Inc., Space and Defense - Salt Lake City (CAGE 19156); Moog Inc (CAGE 94697)
Technical Specifications
ParameterValue
NSN4820-01-228-3575
Primary Part Number176012-001
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerOntic Engineering & Manufacturing, Inc Dba Ontic Us
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5977-00-118-7207176012-001 INTERCHANGEABLE
Brush,electrical Contact
Superior Electric Holding Group Llc Div Specialty Product Technologies
Cross-Reference Index
Part NumberManufacturer
176012-001 PRIMARY Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA)
176012-001 Moog Inc Div Moog Inc., Space and Defense - Salt Lake City (USA)
176012-001 Moog Inc (USA)
Related Parts
5977-00-118-7207INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
176012-001

Frequently Asked Questions

What is NSN 4820-01-228-3575?

NSN 4820-01-228-3575 is a Seat,valve, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-228-3575?

NSN 4820-01-228-3575 has 3 cross-referenced part numbers: 176012-001 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), 176012-001 (Moog Inc Div Moog Inc., Space and Defense - Salt Lake City), 176012-001 (Moog Inc).

What NSN replaces 4820-01-228-3575?

There is 1 known substitute for 4820-01-228-3575: 5977-00-118-7207. Verify interchangeability with system specifications before substitution.

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