PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

118664Seat,valve

Dresser, Llc · NSN 4810-00-325-5313 · FSC 4810 · No Item Name Available
Verified by PartsTable
NSN 4810-00-325-5313 — this item is cataloged by the U.S. Government under National Stock Number 4810-00-325-5313. Primary manufacturer part number: 118664.
Features
  • Seat,valve — FSC 4810
  • Body Outside Diameter: 1.628 INCHES MINIMUM AND 1.629 INCHES MAXIMUM IN
  • Seating Surface Shape: FLAT
  • Material: COBALT COMP 3 OVERALL
  • Style Designator: PLAIN
  • Hardness Rating: 50.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL
  • Body Inside Diameter: 1.370 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN
  • 3 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 4810-00-325-5313, is classified within Federal Supply Class 4810 (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 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4810-00-325-5313
Primary Part Number118664
Item NameSeat,valve
FSC / FSG4810 / 48 — No Item Name Available
ManufacturerDresser, Llc
StatusACTIVE
Body Outside Diameter1.628 INCHES MINIMUM AND 1.629 INCHES MAXIMUM IN
Seating Surface ShapeFLAT
MaterialCOBALT COMP 3 OVERALL
Style DesignatorPLAIN
Hardness Rating50.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL
Body Inside Diameter1.370 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2815-00-091-8035118679 INTERCHANGEABLE
Insert,engine Valve Seat
Dresser, Llc
2815-00-091-8036118680 INTERCHANGEABLE
Insert,engine Valve Seat
Dresser, Llc
4320-00-148-4913 INTERCHANGEABLE
Plate,adjusting
4320-00-158-563032-356 INTERCHANGEABLE
Impeller,pump,centrifugal
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
3020-00-484-0589758711 INTERCHANGEABLE
Gear,spur
Fwd Seagrave Holdings Lp
4820-00-569-1388S-2568-1 INTERCHANGEABLE
Seat,valve
Dresser, Llc
5950-00-648-61502930-8 INTERCHANGEABLE
Transformer,power
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
4820-00-827-1914118617 INTERCHANGEABLE
Seat,valve
Dresser, Llc
3610-01-021-9722932356 INTERCHANGEABLE
Roller,belt Drive
Abd Intl Inc Dba Abdick
5998-01-168-0427118664-1 INTERCHANGEABLE
Circuit Card Assembly
Bae Systems Information and Electronic Systems Integration Inc.
Cross-Reference Index
Part NumberManufacturer
32356 Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
118664 PRIMARY Dresser, Llc (USA)
S-2568-1 Dresser, Llc (USA)
Related Parts
2815-00-091-8035INTERCHANGEABLE
INSERT,ENGINE VALVE SEAT
118679
2815-00-091-8036INTERCHANGEABLE
INSERT,ENGINE VALVE SEAT
118680
4320-00-148-4913INTERCHANGEABLE
PLATE,ADJUSTING
4320-00-158-5630INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
32-356
3020-00-484-0589INTERCHANGEABLE
GEAR,SPUR
758711
4820-00-569-1388INTERCHANGEABLE
SEAT,VALVE
S-2568-1
5950-00-648-6150INTERCHANGEABLE
TRANSFORMER,POWER
2930-8
4820-00-827-1914INTERCHANGEABLE
SEAT,VALVE
118617
3610-01-021-9722INTERCHANGEABLE
ROLLER,BELT DRIVE
932356
5998-01-168-0427INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
118664-1
6695-01-271-7342INTERCHANGEABLE
BEZEL,INSTRUMENT MOUNTING
32356
6150-01-526-8181INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
32356

Frequently Asked Questions

What is NSN 4810-00-325-5313?

NSN 4810-00-325-5313 is a Seat,valve, manufactured by Dresser, Llc, classified under FSC 4810 (No Item Name Available). Status: active.

What are the part numbers for NSN 4810-00-325-5313?

NSN 4810-00-325-5313 has 3 cross-referenced part numbers: 32356 (Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.), 118664 (Dresser, Llc), S-2568-1 (Dresser, Llc).

What NSN replaces 4810-00-325-5313?

There are 12 known substitutes for 4810-00-325-5313: 2815-00-091-8035, 2815-00-091-8036, 4320-00-148-4913 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 118664?

Key specifications for 118664: Body Outside Diameter: 1.628 INCHES MINIMUM AND 1.629 INCHES MAXIMUM IN; Seating Surface Shape: FLAT; Overall Height: 0.217 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN; Material: COBALT COMP 3 OVERALL. 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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