PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

012-500-0004Seat,valve

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-00-036-1738 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-036-1738 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-036-1738. Primary manufacturer part number: 012-500-0004.
Features
  • Seat,valve — FSC 4820
  • Style Designator: PLAIN THREADED
  • Seating Surface Shape: ANGULAR
  • Thread Length: 0.281 INCHES NOMINAL SINGLE THREADED PORTION IN
  • Material: NICKEL ALLOY OVERALL
  • Thread Series Designator: UN SINGLE THREADED PORTION
  • Nominal Thread Size: 1.808 INCHES SINGLE THREADED PORTION IN
  • Seat Angle in Deg: 45.000 NOMINAL
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 4820-00-036-1738, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-036-1738
Primary Part Number012-500-0004
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
Style DesignatorPLAIN THREADED
Seating Surface ShapeANGULAR
Thread Length0.281 INCHES NOMINAL SINGLE THREADED PORTION IN
MaterialNICKEL ALLOY OVERALL
Thread Series DesignatorUN SINGLE THREADED PORTION
Nominal Thread Size1.808 INCHES SINGLE THREADED PORTION IN
Seat Angle in Deg45.000 NOMINAL
Body Inside Diameter0.984 INCHES NOMINAL IN
Thread Quantity Per Inch18 SINGLE THREADED PORTION
Thread Class2A SINGLE THREADED PORTION A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
1650-00-011-0844DS-934338 INTERCHANGEABLE
Ring,seal,pump
Eaton Aerospace, Llc Dba Jackson South
6625-00-028-3542 INTERCHANGEABLE
Ammeter
2920-00-136-87355-154 INTERCHANGEABLE
Regulator,engine Generator
Motorola Automotive Electronics
4820-00-276-902121U1143 PIECE 4287 INTERCHANGEABLE
Valve,globe
Naval Ship Systems Command
5961-00-458-68665-154-3 INTERCHANGEABLE
Semiconductor Device,diode
Bird Electronic Corporation Div Bird Electronic Corp
5930-00-879-8282 INTERCHANGEABLE
Guard,switch
6145-01-164-64535154C INTERCHANGEABLE
Cable,special Purpose,electrical
Belden, Inc.
5340-01-203-65437350 INTERCHANGEABLE
Clip,spring Tension
Department of Defense Project Manager-Mobile Electric Power
3990-01-733-628915MTC/1871 INTERCHANGEABLE
Tie Down,cargo,vehicle
Peck & Hale, Llc
Cross-Reference Index
Part NumberManufacturer
012-500-0004 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
51-5-4 Kunkle Industries Inc Lonergan Valve Div (USA)
012-500-0004 Kunkle Industries Inc Lonergan Valve Div (USA)
012-500-0004 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
NMP227 PIECE 51 Kunkle Industries Inc Lonergan Valve Div (USA)
Related Parts
1650-00-011-0844INTERCHANGEABLE
RING,SEAL,PUMP
DS-934338
6625-00-028-3542INTERCHANGEABLE
AMMETER
2920-00-136-8735INTERCHANGEABLE
REGULATOR,ENGINE GENERATOR
5-154
4820-00-276-9021INTERCHANGEABLE
VALVE,GLOBE
21U1143 PIECE 4287
5961-00-458-6866INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5-154-3
5930-00-879-8282INTERCHANGEABLE
GUARD,SWITCH
6145-01-164-6453INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
5154C
5340-01-203-6543INTERCHANGEABLE
CLIP,SPRING TENSION
7350
3990-01-733-6289INTERCHANGEABLE
TIE DOWN,CARGO,VEHICLE
15MTC/1871

Frequently Asked Questions

What is NSN 4820-00-036-1738?

NSN 4820-00-036-1738 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 4820-00-036-1738?

NSN 4820-00-036-1738 has 5 cross-referenced part numbers: 012-500-0004 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 51-5-4 (Kunkle Industries Inc Lonergan Valve Div), 012-500-0004 (Kunkle Industries Inc Lonergan Valve Div), 012-500-0004 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), NMP227 PIECE 51 (Kunkle Industries Inc Lonergan Valve Div).

What NSN replaces 4820-00-036-1738?

There are 9 known substitutes for 4820-00-036-1738: 1650-00-011-0844, 6625-00-028-3542, 2920-00-136-8735 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 012-500-0004?

Key specifications for 012-500-0004: Overall Height: 0.500 INCHES NOMINAL IN; Style Designator: PLAIN THREADED; Seating Surface Shape: ANGULAR; Thread Length: 0.281 INCHES NOMINAL SINGLE THREADED PORTION IN. 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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