PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

56611Seat and Gasket

Spirax Sarco Inc Dba Spirax Sarco · NSN 4730-00-764-6650 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-764-6650 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-764-6650. Primary manufacturer part number: 56611.
Features
  • Seat and Gasket — FSC 4730
  • 2 verified cross-references
  • Primary manufacturer: Spirax Sarco Inc Dba Spirax Sarco
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Seat and Gasket, cataloged under National Stock Number 4730-00-764-6650, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Spirax Sarco Inc Dba Spirax Sarco. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeat and Gasket
FSC / FSG4730 — No Item Name Available (FSG 47)
ManufacturersSpirax Sarco Inc Dba Spirax Sarco (CAGE 53059)
Technical Specifications
ParameterValue
NSN4730-00-764-6650
Primary Part Number56611
Item NameSeat and Gasket
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSpirax Sarco Inc Dba Spirax Sarco
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5305-00-151-573456611 INTERCHANGEABLE
Screw,cap,socket Head
Parker Hannifin Corporation Div Hydraulic Systems Division
5310-00-186-0970 INTERCHANGEABLE
Washer,key
4730-00-555-182556611 INTERCHANGEABLE
Strainer,sediment
Arvinmeritor Inc
Cross-Reference Index
Part NumberManufacturer
35505X39243 Spirax Sarco Inc Dba Spirax Sarco (USA)
56611 PRIMARY Spirax Sarco Inc Dba Spirax Sarco (USA)
Related Parts
5305-00-151-5734INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
56611
5310-00-186-0970INTERCHANGEABLE
WASHER,KEY
4730-00-555-1825INTERCHANGEABLE
STRAINER,SEDIMENT
56611

Frequently Asked Questions

What is NSN 4730-00-764-6650?

NSN 4730-00-764-6650 is a Seat and Gasket, manufactured by Spirax Sarco Inc Dba Spirax Sarco, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-764-6650?

NSN 4730-00-764-6650 has 2 cross-referenced part numbers: 35505X39243 (Spirax Sarco Inc Dba Spirax Sarco), 56611 (Spirax Sarco Inc Dba Spirax Sarco).

What NSN replaces 4730-00-764-6650?

There are 3 known substitutes for 4730-00-764-6650: 5305-00-151-5734, 5310-00-186-0970, 4730-00-555-1825. Verify interchangeability with system specifications before substitution.

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