PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N375-68Seat,valve

Caltam, Inc · NSN 4820-01-067-6517 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-067-6517 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-067-6517. Primary manufacturer part number: N375-68.
Features
  • Seat,valve — FSC 4820
  • Body Outside Diameter: 0.621 INCHES MINIMUM AND 0.622 INCHES MAXIMUM IN
  • Material Document and Classification: QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Seating Surface Shape: ANGULAR
  • Style Designator: PLAIN FLANGED
  • Material: STEEL CORROSION RESISTING OVERALL
  • Flange Seat to Disk End Height: 0.625 INCHES NOMINAL IN
  • Body Stepped Inside Diameter: 0.515 INCHES NOMINAL SECOND STEP IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-067-6517, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Caltam, Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-067-6517
Primary Part NumberN375-68
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCaltam, Inc
StatusACTIVE
Body Outside Diameter0.621 INCHES MINIMUM AND 0.622 INCHES MAXIMUM IN
Material Document and ClassificationQQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Seating Surface ShapeANGULAR
Style DesignatorPLAIN FLANGED
MaterialSTEEL CORROSION RESISTING OVERALL
Flange Seat to Disk End Height0.625 INCHES NOMINAL IN
Body Stepped Inside Diameter0.515 INCHES NOMINAL SECOND STEP IN
Body Stepped Inside Diameter0.250 INCHES NOMINAL FIRST STEP IN
Under Flange Height0.750 INCHES NOMINAL IN
Seat Angle in Deg30.000 NOMINAL
Flange Diameter0.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5930-00-313-3489 INTERCHANGEABLE
Switch,control,ante
4820-01-067-5312N-375 INTERCHANGEABLE
Stem,fluid Valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4710-01-185-8050B19332-34 INTERCHANGEABLE
Pipe,metallic
Leslie Controls, Inc. Dba Leslie Controls Inc
4730-01-185-813721499 INTERCHANGEABLE
Flange,pipe
Leslie Controls, Inc. Dba Leslie Controls Inc
4730-01-185-8184N-375-10 INTERCHANGEABLE
Flange,pipe
Leslie Controls, Inc. Dba Leslie Controls Inc
4730-01-185-8185999-N-375 INTERCHANGEABLE
Bridge,inlet,strainer
W. & O. Supply, Inc. Div W&o Norfolk
4730-01-185-8186N-375 PIECE 41 INTERCHANGEABLE
Handle,strainer Basket
Dla Aviation Maintenance Depot Mechanicsburg
4730-01-186-6051N-375-69 INTERCHANGEABLE
Bonnet,strainer Valve
Leslie Controls, Inc. Dba Leslie Controls Inc
3020-01-186-953619328-65 INTERCHANGEABLE
Guard,mechanical Drive
Leslie Controls, Inc. Dba Leslie Controls Inc
4710-01-187-2685N-375-75 INTERCHANGEABLE
Tube,bent,metallic
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
N375PC68 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
N-375 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
N375-68 PRIMARY Caltam, Inc (USA)
N-375-68 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
5930-00-313-3489INTERCHANGEABLE
SWITCH,CONTROL,ANTE
4820-01-067-5312INTERCHANGEABLE
STEM,FLUID VALVE
N-375
4710-01-185-8050INTERCHANGEABLE
PIPE,METALLIC
B19332-34
4730-01-185-8137INTERCHANGEABLE
FLANGE,PIPE
21499
4730-01-185-8184INTERCHANGEABLE
FLANGE,PIPE
N-375-10
4730-01-185-8185INTERCHANGEABLE
BRIDGE,INLET,STRAINER
999-N-375
4730-01-185-8186INTERCHANGEABLE
HANDLE,STRAINER BASKET
N-375 PIECE 41
4730-01-186-6051INTERCHANGEABLE
BONNET,STRAINER VALVE
N-375-69
3020-01-186-9536INTERCHANGEABLE
GUARD,MECHANICAL DRIVE
19328-65
4710-01-187-2685INTERCHANGEABLE
TUBE,BENT,METALLIC
N-375-75
4730-01-188-1239INTERCHANGEABLE
NIPPLE,PIPE
N-375-76

Frequently Asked Questions

What is NSN 4820-01-067-6517?

NSN 4820-01-067-6517 is a Seat,valve, manufactured by Caltam, Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-067-6517?

NSN 4820-01-067-6517 has 4 cross-referenced part numbers: N375PC68 (Leslie Controls, Inc. Dba Leslie Controls Inc), N-375 (Leslie Controls, Inc. Dba Leslie Controls Inc), N375-68 (Caltam, Inc), N-375-68 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-01-067-6517?

There are 11 known substitutes for 4820-01-067-6517: 5930-00-313-3489, 4820-01-067-5312, 4710-01-185-8050 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of N375-68?

Key specifications for N375-68: Body Outside Diameter: 0.621 INCHES MINIMUM AND 0.622 INCHES MAXIMUM IN; Material Document and Classification: QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Seating Surface Shape: ANGULAR; Style Designator: PLAIN FLANGED. 12 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