PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

32990Insert,engine Valve Seat

Safeguard Powertech Systems · NSN 2805-00-401-9518 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-401-9518 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-401-9518. Primary manufacturer part number: 32990.
Features
  • Insert,engine Valve Seat — FSC 2805
  • Body Outside Diameter: 2.250 INCHES NOMINAL IN
  • Seating Surface Shape: FLAT
  • Surface Treatment: NICKEL OVERALL
  • Style Designator: PLAIN
  • Material: STEEL OVERALL
  • Body Inside Diameter: 1.938 INCHES NOMINAL IN
  • 4 verified cross-references
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Mechanical power generation
  • Drive system operation
General Description

The Insert,engine Valve Seat, cataloged under National Stock Number 2805-00-401-9518, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Safeguard Powertech Systems. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2805-00-401-9518
Primary Part Number32990
Item NameInsert,engine Valve Seat
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerSafeguard Powertech Systems
StatusACTIVE
Body Outside Diameter2.250 INCHES NOMINAL IN
Seating Surface ShapeFLAT
Surface TreatmentNICKEL OVERALL
Style DesignatorPLAIN
MaterialSTEEL OVERALL
Body Inside Diameter1.938 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5331-01-082-859332990 INTERCHANGEABLE
O-Ring
Brp Us Inc
5940-01-259-1205892R095 INTERCHANGEABLE
Terminal,lug
Aerocontrolex Group, Inc. Dba Aero Fluid Products
5130-01-660-124832990 INTERCHANGEABLE
Universal Joint,socket Wrench at
S K Hand Tool Corp
Cross-Reference Index
Part NumberManufacturer
179033R1 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
32990 PRIMARY Safeguard Powertech Systems (USA)
179033R1 Navistar Intl Corp Truck Br Ohio Plant (USA)
179033R1 Navistar International Corporation Dba Navistar (USA)
Related Parts
5331-01-082-8593INTERCHANGEABLE
O-RING
32990
5940-01-259-1205INTERCHANGEABLE
TERMINAL,LUG
892R095
5130-01-660-1248INTERCHANGEABLE
UNIVERSAL JOINT,SOCKET WRENCH AT
32990

Frequently Asked Questions

What is NSN 2805-00-401-9518?

NSN 2805-00-401-9518 is a Insert,engine Valve Seat, manufactured by Safeguard Powertech Systems, classified under FSC 2805 (No Item Name Available). Status: active.

What are the part numbers for NSN 2805-00-401-9518?

NSN 2805-00-401-9518 has 4 cross-referenced part numbers: 179033R1 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), 32990 (Safeguard Powertech Systems), 179033R1 (Navistar Intl Corp Truck Br Ohio Plant), 179033R1 (Navistar International Corporation Dba Navistar).

What NSN replaces 2805-00-401-9518?

There are 3 known substitutes for 2805-00-401-9518: 5331-01-082-8593, 5940-01-259-1205, 5130-01-660-1248. Verify interchangeability with system specifications before substitution.

What are the specifications of 32990?

Key specifications for 32990: Body Outside Diameter: 2.250 INCHES NOMINAL IN; Seating Surface Shape: FLAT; Surface Treatment: NICKEL OVERALL; Style Designator: PLAIN. 7 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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