PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

37435Parts Kit,check Valve

Thetford Corp · NSN 4820-01-581-5671 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-581-5671 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-581-5671. Primary manufacturer part number: 37435.
Features
  • Parts Kit,check Valve — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Thetford Corp
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Parts Kit,check Valve, cataloged under National Stock Number 4820-01-581-5671, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Thetford Corp. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-581-5671
Primary Part Number37435
Item NameParts Kit,check Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerThetford Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6210-00-012-512237-0135-300 INTERCHANGEABLE
Lens,light
Dialight Corporation
5961-00-174-571537954 INTERCHANGEABLE
Semiconductor Device,diode
Evoqua Water Technologies Llc
5110-00-239-7590 INTERCHANGEABLE
File,hand
4330-01-149-791499137435 INTERCHANGEABLE
Hook,purifier
Alfa Laval Inc
9905-01-212-956737435 INTERCHANGEABLE
Plate,identification
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
4730-01-616-5413379-54 INTERCHANGEABLE
Clamp,hose
Rix Industries
Cross-Reference Index
Part NumberManufacturer
37435 PRIMARY Thetford Corp (USA)
37954 Thetford Corp (USA)
Related Parts
6210-00-012-5122INTERCHANGEABLE
LENS,LIGHT
37-0135-300
5961-00-174-5715INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
37954
5110-00-239-7590INTERCHANGEABLE
FILE,HAND
4330-01-149-7914INTERCHANGEABLE
HOOK,PURIFIER
99137435
9905-01-212-9567INTERCHANGEABLE
PLATE,IDENTIFICATION
37435
4730-01-616-5413INTERCHANGEABLE
CLAMP,HOSE
379-54

Frequently Asked Questions

What is NSN 4820-01-581-5671?

NSN 4820-01-581-5671 is a Parts Kit,check Valve, manufactured by Thetford Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-581-5671?

NSN 4820-01-581-5671 has 2 cross-referenced part numbers: 37435 (Thetford Corp), 37954 (Thetford Corp).

What NSN replaces 4820-01-581-5671?

There are 6 known substitutes for 4820-01-581-5671: 6210-00-012-5122, 5961-00-174-5715, 5110-00-239-7590 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 37435?

Key specifications for 37435: End Item Identification: AIRCRAFT; Part Name Assigned by Controlling Agency: JOKER VALVE KIT; Special Features: BLACK BUNA-N 65 DUROSHORE A;CRITICAL CHARACTERISTICS-OD 57.15MM;CENTER LINE SLOT 1.59MM;ID 38.1MM MM. 3 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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