PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

685-66100Valve,safety Relief

Wheeler Fleet Solutions, Co. · NSN 4820-01-012-9967 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-012-9967 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-012-9967. Primary manufacturer part number: 685-66100.
Features
  • Valve,safety Relief — FSC 4820
  • 5 verified cross-references
  • Primary manufacturer: Wheeler Fleet Solutions, Co.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-012-9967, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Wheeler Fleet Solutions, Co.. This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,safety Relief
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersJednolity Indeks Materialowy - Uniform Material Index (CAGE 9009H); Keco Industries, Inc. (CAGE 94833); Wheeler Fleet Solutions, Co. (CAGE 55683); Davey Compressor Co Div of Keco Industries Inc (CAGE 16004)
Technical Specifications
ParameterValue
NSN4820-01-012-9967
Primary Part Number685-66100
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWheeler Fleet Solutions, Co.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5840-00-169-505866100 INTERCHANGEABLE
Control,sensitivity Time,radar
L3harris Technologies, Inc Div Space & Airborne Systems
5330-00-916-430666100 INTERCHANGEABLE
Packing,preformed
Walz & Krenzer Inc Div Mapeco Products
5330-00-916-6399 INTERCHANGEABLE
Packing Assembly
5999-00-918-4046276-2142P4 INTERCHANGEABLE
Contact,electrical
Raytheon Company Dba Raytheon Co
4820-01-270-5075N66100 INTERCHANGEABLE
Disk,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
6240-01-459-245066100 INTERCHANGEABLE
Lamp,metal Halide
Venture Lighting International, Inc. Dba Venture Lighting Intl
5935-01-581-6132 INTERCHANGEABLE
Connector,receptacle,electrical
Cross-Reference Index
Part NumberManufacturer
4820PL0567422 Jednolity Indeks Materialowy - Uniform Material Index (POL)
66100-1 Keco Industries, Inc. (USA)
685-66100 PRIMARY Wheeler Fleet Solutions, Co. (USA)
66100 Keco Industries, Inc. (USA)
66100 Davey Compressor Co Div of Keco Industries Inc (USA)
Related Parts
5840-00-169-5058INTERCHANGEABLE
CONTROL,SENSITIVITY TIME,RADAR
66100
5330-00-916-4306INTERCHANGEABLE
PACKING,PREFORMED
66100
5330-00-916-6399INTERCHANGEABLE
PACKING ASSEMBLY
5999-00-918-4046INTERCHANGEABLE
CONTACT,ELECTRICAL
276-2142P4
4820-01-270-5075INTERCHANGEABLE
DISK,VALVE
N66100
6240-01-459-2450INTERCHANGEABLE
LAMP,METAL HALIDE
66100
5935-01-581-6132INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL

Frequently Asked Questions

What is NSN 4820-01-012-9967?

NSN 4820-01-012-9967 is a Valve,safety Relief, manufactured by Wheeler Fleet Solutions, Co., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-012-9967?

NSN 4820-01-012-9967 has 5 cross-referenced part numbers: 4820PL0567422 (Jednolity Indeks Materialowy - Uniform Material Index), 66100-1 (Keco Industries, Inc.), 685-66100 (Wheeler Fleet Solutions, Co.), 66100 (Keco Industries, Inc.), 66100 (Davey Compressor Co Div of Keco Industries Inc).

What NSN replaces 4820-01-012-9967?

There are 7 known substitutes for 4820-01-012-9967: 5840-00-169-5058, 5330-00-916-4306, 5330-00-916-6399 and 4 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com