PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2736Seat,valve

Lawler Manufacturing Company, Inc. · NSN 4820-00-756-5537 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-756-5537 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-756-5537. Primary manufacturer part number: 2736.
Features
  • Seat,valve — FSC 4820
  • Body Inside Diameter: 1.313 INCHES NOMINAL IN
  • Material: NICKEL ALLOY OVERALL
  • Thread Class: 2A SINGLE THREADED PORTION A
  • Style Designator: THREADED FLANGED
  • Seating Surface Shape: FLAT
  • Nominal Thread Size: 1.625 INCHES SINGLE THREADED PORTION IN
  • Flange Seat to Disk End Height: 0.375 INCHES NOMINAL 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 4820-00-756-5537, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Lawler Manufacturing Company, Inc.. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
NSN4820-00-756-5537
Primary Part Number2736
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLawler Manufacturing Company, Inc.
StatusACTIVE
Body Inside Diameter1.313 INCHES NOMINAL IN
MaterialNICKEL ALLOY OVERALL
Thread Class2A SINGLE THREADED PORTION A
Style DesignatorTHREADED FLANGED
Seating Surface ShapeFLAT
Nominal Thread Size1.625 INCHES SINGLE THREADED PORTION IN
Flange Seat to Disk End Height0.375 INCHES NOMINAL IN
Flange Diameter1.750 INCHES NOMINAL IN
Thread Series DesignatorUNEF SINGLE THREADED PORTION
Thread Length0.250 INCHES NOMINAL SINGLE THREADED PORTION IN
Under Flange Height0.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5905-00-050-1862 INTERCHANGEABLE
Resistor,fixed,wire Wound
5325-00-256-2846 INTERCHANGEABLE
Ring,retaining
5905-00-401-09932736 INTERCHANGEABLE
Resistor,thermal
Sypris Electronics, Llc Div Sypris Electronics, Llc - Colorado Field Services
2520-00-615-6022 INTERCHANGEABLE
Shifter Fork,vehicular
5977-00-636-075725501 INTERCHANGEABLE
Brush,electrical Contact
Champion Aerospace Llc
4720-00-727-823471-282 INTERCHANGEABLE
Hose,nonmetallic
Itw Industrial Finishing Dba Binks Devilbiss
2530-00-781-47113912149 INTERCHANGEABLE
Parts Kit,hydraulic Brake Master
General Motors Llc Dba General Motors Llc
5998-01-029-25741203838 INTERCHANGEABLE
Circuit Card Assembly
Lockheed Martin Corporation Div Rms - Mitchel Field
5315-01-037-524411449 INTERCHANGEABLE
Pin,spring
Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group
3030-01-048-472727-36 INTERCHANGEABLE
Lacing,belt,pin
Flexible Steel Lacing Co
Cross-Reference Index
Part NumberManufacturer
2736 PRIMARY Lawler Manufacturing Company, Inc. (USA)
255-01 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
SMS-2736 Salem Manufacturing & Sales Inc Div Salem Manufacturing and Sales Inc (USA)
Related Parts
5905-00-050-1862INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5325-00-256-2846INTERCHANGEABLE
RING,RETAINING
5905-00-401-0993INTERCHANGEABLE
RESISTOR,THERMAL
2736
2520-00-615-6022INTERCHANGEABLE
SHIFTER FORK,VEHICULAR
5977-00-636-0757INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
25501
4720-00-727-8234INTERCHANGEABLE
HOSE,NONMETALLIC
71-282
2530-00-781-4711INTERCHANGEABLE
PARTS KIT,HYDRAULIC BRAKE MASTER
3912149
5998-01-029-2574INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
1203838
5315-01-037-5244INTERCHANGEABLE
PIN,SPRING
11449
3030-01-048-4727INTERCHANGEABLE
LACING,BELT,PIN
27-36
5325-01-067-9031INTERCHANGEABLE
RING,RETAINING
25501
6110-01-087-9071INTERCHANGEABLE
PANEL,POWER DISTRIBUTION
2550-1

Frequently Asked Questions

What is NSN 4820-00-756-5537?

NSN 4820-00-756-5537 is a Seat,valve, manufactured by Lawler Manufacturing Company, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-756-5537?

NSN 4820-00-756-5537 has 3 cross-referenced part numbers: 2736 (Lawler Manufacturing Company, Inc.), 255-01 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), SMS-2736 (Salem Manufacturing & Sales Inc Div Salem Manufacturing and Sales Inc).

What NSN replaces 4820-00-756-5537?

There are 12 known substitutes for 4820-00-756-5537: 5905-00-050-1862, 5325-00-256-2846, 5905-00-401-0993 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2736?

Key specifications for 2736: Body Inside Diameter: 1.313 INCHES NOMINAL IN; Material: NICKEL ALLOY OVERALL; Thread Class: 2A SINGLE THREADED PORTION A; Style Designator: THREADED FLANGED. 11 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