PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

33012Seat,valve

Vogt Valves, Inc. Dba Vogt Valves Inc · NSN 4820-01-117-4688 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-117-4688 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-117-4688. Primary manufacturer part number: 33012.
Features
  • Seat,valve — FSC 4820
  • Seating Surface Shape: ANGULAR
  • Style Designator: THREADED FLANGED
  • Thread Series Designator: UN SINGLE THREADED PORTION
  • Material: STEEL OVERALL
  • Body Inside Diameter: 0.642 INCHES NOMINAL IN
  • Flange Seat to Disk End Height: 0.290 INCHES NOMINAL IN
  • Seat Angle in Deg: 45.000 NOMINAL
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-117-4688, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Vogt Valves, Inc. Dba Vogt Valves Inc. Government technical data includes 13 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-117-4688
Primary Part Number33012
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerVogt Valves, Inc. Dba Vogt Valves Inc
StatusACTIVE
Seating Surface ShapeANGULAR
Style DesignatorTHREADED FLANGED
Thread Series DesignatorUN SINGLE THREADED PORTION
MaterialSTEEL OVERALL
Body Inside Diameter0.642 INCHES NOMINAL IN
Flange Seat to Disk End Height0.290 INCHES NOMINAL IN
Seat Angle in Deg45.000 NOMINAL
Flange Diameter1.405 INCHES NOMINAL IN
Thread Quantity Per Inch16 SINGLE THREADED PORTION
Under Flange Height0.398 INCHES NOMINAL IN
Thread Length0.250 INCHES NOMINAL SINGLE THREADED PORTION IN
Nominal Thread Size0.938 INCHES SINGLE THREADED PORTION IN
Thread Class2A SINGLE THREADED PORTION A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5310-00-176-8087 INTERCHANGEABLE
Nut,plain,castellated,hexagon
5935-00-201-897336-012 INTERCHANGEABLE
Plug,tip
Gc/waldom Inc
3120-00-516-767810A820148 INTERCHANGEABLE
Bearing,sleeve
Fwd Seagrave Holdings Lp
5330-00-599-66245166864 INTERCHANGEABLE
Packing,preformed
Rolls-Royce Solutions America Inc
5905-00-978-1010 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
6515-01-164-2853330-12 INTERCHANGEABLE
Drainage System Sup
Dow Silicones Corporation
3020-01-234-3542 INTERCHANGEABLE
Gear,spur
5310-01-425-305833012 INTERCHANGEABLE
Washer,flat
Fastenal Company Div Bind
5310-01-503-87728307206 INTERCHANGEABLE
Washer,flat,1.2in
Jlg Industries, Inc.
3110-01-505-129033012 INTERCHANGEABLE
Bearing,roller,tapered
The Timken Corporation
Cross-Reference Index
Part NumberManufacturer
B-45528 PART 15780A Flowserve Inc (USA)
15780A Flowserve Inc (USA)
33012 PRIMARY Vogt Valves, Inc. Dba Vogt Valves Inc (USA)
Related Parts
5310-00-176-8087INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
5935-00-201-8973INTERCHANGEABLE
PLUG,TIP
36-012
3120-00-516-7678INTERCHANGEABLE
BEARING,SLEEVE
10A820148
5330-00-599-6624INTERCHANGEABLE
PACKING,PREFORMED
5166864
5905-00-978-1010INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
6515-01-164-2853INTERCHANGEABLE
DRAINAGE SYSTEM SUP
330-12
3020-01-234-3542INTERCHANGEABLE
GEAR,SPUR
5310-01-425-3058INTERCHANGEABLE
WASHER,FLAT
33012
5310-01-503-8772INTERCHANGEABLE
WASHER,FLAT,1.2IN
8307206
3110-01-505-1290INTERCHANGEABLE
BEARING,ROLLER,TAPERED
33012
2590-01-508-3479INTERCHANGEABLE
VALVE,CONTROL,AIR HORN
032243

Frequently Asked Questions

What is NSN 4820-01-117-4688?

NSN 4820-01-117-4688 is a Seat,valve, manufactured by Vogt Valves, Inc. Dba Vogt Valves Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-117-4688?

NSN 4820-01-117-4688 has 3 cross-referenced part numbers: B-45528 PART 15780A (Flowserve Inc), 15780A (Flowserve Inc), 33012 (Vogt Valves, Inc. Dba Vogt Valves Inc).

What NSN replaces 4820-01-117-4688?

There are 11 known substitutes for 4820-01-117-4688: 5310-00-176-8087, 5935-00-201-8973, 3120-00-516-7678 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 33012?

Key specifications for 33012: Seating Surface Shape: ANGULAR; Style Designator: THREADED FLANGED; Thread Series Designator: UN SINGLE THREADED PORTION; Material: STEEL OVERALL. 13 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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