PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

118617Seat,valve

Dresser, Llc · NSN 4820-00-827-1914 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-827-1914 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-827-1914. Primary manufacturer part number: 118617.
Features
  • Seat,valve — FSC 4820
  • Body Outside Diameter: 3.253 INCHES MINIMUM AND 3.254 INCHES MAXIMUM IN
  • Style Designator: PLAIN
  • Seating Surface Shape: FLAT
  • Material: COBALT COMP 3 OVERALL
  • Hardness Rating: 50.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL
  • Body Inside Diameter: 2.870 INCHES MINIMUM AND 2.880 INCHES MAXIMUM IN
  • 4 verified cross-references
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Cobalt Comp 3 Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-827-1914, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Dresser, Llc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-827-1914
Primary Part Number118617
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerDresser, Llc
StatusACTIVE
Body Outside Diameter3.253 INCHES MINIMUM AND 3.254 INCHES MAXIMUM IN
Style DesignatorPLAIN
Seating Surface ShapeFLAT
MaterialCOBALT COMP 3 OVERALL
Hardness Rating50.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL
Body Inside Diameter2.870 INCHES MINIMUM AND 2.880 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5310-00-011-8617118617 INTERCHANGEABLE
Nut,plain,hexagon
Chrysler Realty Company Llc Dba Daimler Chrysler
2815-00-091-8035118679 INTERCHANGEABLE
Insert,engine Valve Seat
Dresser, Llc
2815-00-091-8036118680 INTERCHANGEABLE
Insert,engine Valve Seat
Dresser, Llc
5360-00-197-6612118617 INTERCHANGEABLE
Spring,helical,compression
Transdigm Inc Div Aero Fluid Products
4810-00-325-5313118664 INTERCHANGEABLE
Seat,valve
Dresser, Llc
4820-00-569-1388S-2568-1 INTERCHANGEABLE
Seat,valve
Dresser, Llc
7035-01-058-8727118000617 INTERCHANGEABLE
Head Assembly,read-Write
Data General Corporation
Cross-Reference Index
Part NumberManufacturer
QPL11276 Cecom Lr Center (USA)
S-2568-1 Dresser, Llc (USA)
118617 PRIMARY Dresser, Llc (USA)
MILE11276 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5310-00-011-8617INTERCHANGEABLE
NUT,PLAIN,HEXAGON
118617
2815-00-091-8035INTERCHANGEABLE
INSERT,ENGINE VALVE SEAT
118679
2815-00-091-8036INTERCHANGEABLE
INSERT,ENGINE VALVE SEAT
118680
5360-00-197-6612INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
118617
4810-00-325-5313INTERCHANGEABLE
SEAT,VALVE
118664
4820-00-569-1388INTERCHANGEABLE
SEAT,VALVE
S-2568-1
7035-01-058-8727INTERCHANGEABLE
HEAD ASSEMBLY,READ-WRITE
118000617

Frequently Asked Questions

What is NSN 4820-00-827-1914?

NSN 4820-00-827-1914 is a Seat,valve, manufactured by Dresser, Llc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-827-1914?

NSN 4820-00-827-1914 has 4 cross-referenced part numbers: QPL11276 (Cecom Lr Center), S-2568-1 (Dresser, Llc), 118617 (Dresser, Llc), MILE11276 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4820-00-827-1914?

There are 7 known substitutes for 4820-00-827-1914: 5310-00-011-8617, 2815-00-091-8035, 2815-00-091-8036 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 118617?

Key specifications for 118617: Overall Height: 0.311 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN; Body Outside Diameter: 3.253 INCHES MINIMUM AND 3.254 INCHES MAXIMUM IN; Style Designator: PLAIN; Seating Surface Shape: FLAT. 7 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com