PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N42081Half Ring,valve

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-137-8037 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-137-8037 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-137-8037. Primary manufacturer part number: N42081.
Features
  • Half Ring,valve — FSC 4820
  • General Characteristics Item Description: BRASS
  • 5 verified cross-references
  • Primary manufacturer: Leslie Controls, Inc. Dba Leslie Controls Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Half Ring,valve, cataloged under National Stock Number 4820-01-137-8037, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 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
NSN4820-01-137-8037
Primary Part NumberN42081
Item NameHalf Ring,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
General Characteristics Item DescriptionBRASS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-232-3555230611-000 INTERCHANGEABLE
Reactor
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
5310-00-262-29133109202 INTERCHANGEABLE
Washer,flat
Chrysler Corp Engine and Components Sales Diversified Products Div
4820-01-061-7541N616175358 INTERCHANGEABLE
Seat,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-144-3822N58425 INTERCHANGEABLE
Disk,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4810-01-153-151424500N PIECE 24 INTERCHANGEABLE
Cap,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-182-2708N56785 INTERCHANGEABLE
Diaphragm Case,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-183-2426N37678 INTERCHANGEABLE
Diaphragm Case,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
1680-01-206-793842081 INTERCHANGEABLE
End Cap,valve
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5305-01-237-506342081 INTERCHANGEABLE
Screw,cap,hexagon Head
Barnes Group Inc. Dba Barnes Distribution
4820-01-237-6339N37844 INTERCHANGEABLE
Plate,valve Diaphragm
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
42081 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
24500N PIECE 12 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
N42081 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
24500N Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
24500N PIECE 12 Lineta Engineering Und Handelsgesell-Schaft Mbh (DEU)
Related Parts
5950-00-232-3555INTERCHANGEABLE
REACTOR
230611-000
5310-00-262-2913INTERCHANGEABLE
WASHER,FLAT
3109202
4820-01-061-7541INTERCHANGEABLE
SEAT,VALVE
N616175358
4820-01-144-3822INTERCHANGEABLE
DISK,VALVE
N58425
4810-01-153-1514INTERCHANGEABLE
CAP,VALVE
24500N PIECE 24
4820-01-182-2708INTERCHANGEABLE
DIAPHRAGM CASE,VALVE
N56785
4820-01-183-2426INTERCHANGEABLE
DIAPHRAGM CASE,VALVE
N37678
1680-01-206-7938INTERCHANGEABLE
END CAP,VALVE
42081
5305-01-237-5063INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
42081
4820-01-237-6339INTERCHANGEABLE
PLATE,VALVE DIAPHRAGM
N37844
6515-01-406-0496INTERCHANGEABLE
BONE PLATE
420.81
4820-01-587-8318INTERCHANGEABLE
VALVE,DIAPHRAGM C

Frequently Asked Questions

What is NSN 4820-01-137-8037?

NSN 4820-01-137-8037 is a Half Ring,valve, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-137-8037?

NSN 4820-01-137-8037 has 5 cross-referenced part numbers: 42081 (Leslie Controls, Inc. Dba Leslie Controls Inc), 24500N PIECE 12 (Leslie Controls, Inc. Dba Leslie Controls Inc), N42081 (Leslie Controls, Inc. Dba Leslie Controls Inc), 24500N (Leslie Controls, Inc. Dba Leslie Controls Inc), 24500N PIECE 12 (Lineta Engineering Und Handelsgesell-Schaft Mbh).

What NSN replaces 4820-01-137-8037?

There are 12 known substitutes for 4820-01-137-8037: 5950-00-232-3555, 5310-00-262-2913, 4820-01-061-7541 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of N42081?

Key specifications for N42081: General Characteristics Item Description: BRASS. 1 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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