PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

30553Insert,engine Valve Seat

Safeguard Powertech Systems · NSN 2815-00-459-5969 · FSC 2815 · No Item Name Available
Verified by PartsTable
NSN 2815-00-459-5969 — this item is cataloged by the U.S. Government under National Stock Number 2815-00-459-5969. Primary manufacturer part number: 30553.
Features
  • Insert,engine Valve Seat — FSC 2815
  • Seating Surface Shape: ANGULAR
  • Style Designator: PLAIN
  • Surface Treatment: NICKEL OVERALL
  • Material: STEEL OVERALL
  • Seat Angle in Deg: 55.000 NOMINAL
  • Body Outside Diameter: 1.448 INCHES NOMINAL IN
  • Body Inside Diameter: 1.210 INCHES NOMINAL IN
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 2815-00-459-5969, is classified within Federal Supply Class 2815 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Safeguard Powertech Systems. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2815-00-459-5969
Primary Part Number30553
Item NameInsert,engine Valve Seat
FSC / FSG2815 / 28 — No Item Name Available
ManufacturerSafeguard Powertech Systems
StatusACTIVE
Seating Surface ShapeANGULAR
Style DesignatorPLAIN
Surface TreatmentNICKEL OVERALL
MaterialSTEEL OVERALL
Seat Angle in Deg55.000 NOMINAL
Body Outside Diameter1.448 INCHES NOMINAL IN
Body Inside Diameter1.210 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5330-00-254-9944 INTERCHANGEABLE
Gasket
5325-00-932-2131D00492001 INTERCHANGEABLE
Grommet,nonmetallic
Siemens Energy and Automation Inc Siemens Furnas Controls Div
3020-01-198-09433055-3 INTERCHANGEABLE
Gear Cluster
Eaton Aerospace Llc Sterer Engineering Morgan Actuators
5310-01-558-993303333-12 INTERCHANGEABLE
Washer,lock
Defense Logistics Agency Dba Defense Supply Center Philadelphia
2935-01-652-1441 INTERCHANGEABLE
Manifold,fluid Cooler
2910-01-689-833730553 INTERCHANGEABLE
Head,fluid Filter
Separ of the Americas, Llc Dba Separ, Losing Filtertek Div Separ Filter
Cross-Reference Index
Part NumberManufacturer
30553 PRIMARY Safeguard Powertech Systems (USA)
5196751 Rolls-Royce Solutions America Inc (USA)
Related Parts
5330-00-254-9944INTERCHANGEABLE
GASKET
5325-00-932-2131INTERCHANGEABLE
GROMMET,NONMETALLIC
D00492001
3020-01-198-0943INTERCHANGEABLE
GEAR CLUSTER
3055-3
5310-01-558-9933INTERCHANGEABLE
WASHER,LOCK
03333-12
2935-01-652-1441INTERCHANGEABLE
MANIFOLD,FLUID COOLER
2910-01-689-8337INTERCHANGEABLE
HEAD,FLUID FILTER
30553

Frequently Asked Questions

What is NSN 2815-00-459-5969?

NSN 2815-00-459-5969 is a Insert,engine Valve Seat, manufactured by Safeguard Powertech Systems, classified under FSC 2815 (No Item Name Available). Status: active.

What are the part numbers for NSN 2815-00-459-5969?

NSN 2815-00-459-5969 has 2 cross-referenced part numbers: 30553 (Safeguard Powertech Systems), 5196751 (Rolls-Royce Solutions America Inc).

What NSN replaces 2815-00-459-5969?

There are 6 known substitutes for 2815-00-459-5969: 5330-00-254-9944, 5325-00-932-2131, 3020-01-198-0943 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 30553?

Key specifications for 30553: Seating Surface Shape: ANGULAR; Style Designator: PLAIN; Surface Treatment: NICKEL OVERALL; Material: STEEL OVERALL. 8 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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