PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

386398C91Valve,safety Relief

Komatsu America Corp. · NSN 4820-00-689-1899 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-689-1899 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-689-1899. Primary manufacturer part number: 386398C91.
Features
  • Valve,safety Relief — FSC 4820
  • 10 verified cross-references
  • Primary manufacturer: Komatsu America Corp.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-00-689-1899, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Komatsu America Corp.. This item has 10 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameValve,safety Relief
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersMontgomery Workshop for the Handicapped (CAGE 18343); Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (CAGE 92679); Komatsu America Corp. (CAGE 0SAT8); Navistar Intl Corp Truck Br Ohio Plant (CAGE 89346); Komatsu American Intl Co (CAGE 29510)
Technical Specifications
ParameterValue
NSN4820-00-689-1899
Primary Part Number386398C91
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerKomatsu America Corp.
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5995-00-371-41513169 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Ed Etnyre & Co
5330-01-200-48021100720000 INTERCHANGEABLE
Gasket
Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc
Cross-Reference Index
Part NumberManufacturer
110720 Montgomery Workshop for the Handicapped (USA)
386398C91 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
386398C91 PRIMARY Komatsu America Corp. (USA)
386398C91 Navistar Intl Corp Truck Br Ohio Plant (USA)
386398C91 Komatsu American Intl Co (USA)
7-386398C91R1F3 Navistar International Corporation Dba Navistar (USA)
386398C91 Navistar International Corporation Dba Navistar (USA)
049-90011-138 Kovatch Corp. (USA)
107866R91 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
386398C91 PRIMARY Nd Defense Llc (USA)
Related Parts
5995-00-371-4151INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
3169
5330-01-200-4802INTERCHANGEABLE
GASKET
1100720000

Frequently Asked Questions

What is NSN 4820-00-689-1899?

NSN 4820-00-689-1899 is a Valve,safety Relief, manufactured by Komatsu America Corp., classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-689-1899?

NSN 4820-00-689-1899 has 10 cross-referenced part numbers: 110720 (Montgomery Workshop for the Handicapped), 386398C91 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), 386398C91 (Komatsu America Corp.), 386398C91 (Navistar Intl Corp Truck Br Ohio Plant), 386398C91 (Komatsu American Intl Co) and 5 more.

What NSN replaces 4820-00-689-1899?

There are 2 known substitutes for 4820-00-689-1899: 5995-00-371-4151, 5330-01-200-4802. Verify interchangeability with system specifications before substitution.

Is NSN 4820-00-689-1899 still in active supply?

NSN 4820-00-689-1899 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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