PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

012-500-0005Seat,valve

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-00-036-1741 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-036-1741 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-036-1741. Primary manufacturer part number: 012-500-0005.
Features
  • Seat,valve — FSC 4820
  • Thread Length: 0.375 INCHES NOMINAL SINGLE THREADED PORTION IN
  • Seating Surface Shape: ANGULAR
  • Seat Angle in Deg: 45.000 NOMINAL
  • Body Inside Diameter: 1.250 INCHES NOMINAL IN
  • Thread Class: 2A SINGLE THREADED PORTION A
  • Style Designator: PLAIN THREADED
  • Nominal Thread Size: 2.062 INCHES SINGLE THREADED PORTION IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-036-1741, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 3 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
NSN4820-00-036-1741
Primary Part Number012-500-0005
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
Thread Length0.375 INCHES NOMINAL SINGLE THREADED PORTION IN
Seating Surface ShapeANGULAR
Seat Angle in Deg45.000 NOMINAL
Body Inside Diameter1.250 INCHES NOMINAL IN
Thread Class2A SINGLE THREADED PORTION A
Style DesignatorPLAIN THREADED
Nominal Thread Size2.062 INCHES SINGLE THREADED PORTION IN
MaterialNICKEL ALLOY OVERALL
Thread Series DesignatorUNF SINGLE THREADED PORTION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-036-1740005-500-0007 INTERCHANGEABLE
Disk,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5355-00-038-92565155 INTERCHANGEABLE
Knob
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
5315-00-132-60427601769 INTERCHANGEABLE
Key,machine
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
2920-00-158-2674105-155 INTERCHANGEABLE
Regulator,engine Generator
Prestolite Electric Inc
4030-00-697-07775194 INTERCHANGEABLE
Rod,anchor
Ngk-Locke, Inc.
5305-00-715-7499037350000 INTERCHANGEABLE
Screw,machine
Smith & Wesson Sales Company
5330-00-765-2908G8-085074 INTERCHANGEABLE
Gasket
Norwalk Compreseer Company Inc Dba Norwalk Compressor Company
5365-00-824-2043DS-934251 INTERCHANGEABLE
Spacer,ring
Eaton Aerospace, Llc Dba Jackson South
6660-00-831-69525155 INTERCHANGEABLE
Cylinder,damper
Belfort Instrument Company
4820-01-239-9049004-500-0049 INTERCHANGEABLE
Stem,fluid Valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
C2542S Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
012.500.0005 Kunkle Industries Inc Lonergan Valve Div (USA)
012-500-0005 Kunkle Industries Inc Lonergan Valve Div (USA)
C2542S PIECE 51M 1 1/4IN Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
012-500-0005 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
51-5-5 Kunkle Industries Inc Lonergan Valve Div (USA)
C2542S Kunkle Industries Inc Lonergan Valve Div (USA)
C2542S PIECE 51M 1 1/4IN Kunkle Industries Inc Lonergan Valve Div (USA)
C2542S PIECE 51M 1 1/4IN Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
012-500-0005 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
Related Parts
4820-00-036-1740INTERCHANGEABLE
DISK,VALVE
005-500-0007
5355-00-038-9256INTERCHANGEABLE
KNOB
5155
5315-00-132-6042INTERCHANGEABLE
KEY,MACHINE
7601769
2920-00-158-2674INTERCHANGEABLE
REGULATOR,ENGINE GENERATOR
105-155
4030-00-697-0777INTERCHANGEABLE
ROD,ANCHOR
5194
5305-00-715-7499INTERCHANGEABLE
SCREW,MACHINE
037350000
5330-00-765-2908INTERCHANGEABLE
GASKET
G8-085074
5365-00-824-2043INTERCHANGEABLE
SPACER,RING
DS-934251
6660-00-831-6952INTERCHANGEABLE
CYLINDER,DAMPER
5155
4820-01-239-9049INTERCHANGEABLE
STEM,FLUID VALVE
004-500-0049
4820-01-321-6442INTERCHANGEABLE
SEAT,VALVE
C2542SPC51M
5136-01-351-3251INTERCHANGEABLE
TAP,THREAD CUTTING

Frequently Asked Questions

What is NSN 4820-00-036-1741?

NSN 4820-00-036-1741 is a Seat,valve, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-036-1741?

NSN 4820-00-036-1741 has 10 cross-referenced part numbers: C2542S (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 012.500.0005 (Kunkle Industries Inc Lonergan Valve Div), 012-500-0005 (Kunkle Industries Inc Lonergan Valve Div), C2542S PIECE 51M 1 1/4IN (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 012-500-0005 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby) and 5 more.

What NSN replaces 4820-00-036-1741?

There are 12 known substitutes for 4820-00-036-1741: 4820-00-036-1740, 5355-00-038-9256, 5315-00-132-6042 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 012-500-0005?

Key specifications for 012-500-0005: Thread Length: 0.375 INCHES NOMINAL SINGLE THREADED PORTION IN; Overall Height: 0.531 INCHES NOMINAL IN; Seating Surface Shape: ANGULAR; Seat Angle in Deg: 45.000 NOMINAL. 11 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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