PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

868536R92Valve,safety Relief

Dressta North America Ltd · NSN 4820-00-073-3480 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-073-3480 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-073-3480. Primary manufacturer part number: 868536R92.
Features
  • Valve,safety Relief — FSC 4820
  • Nominal Thread Size: 0.375 INCHES SECOND END IN
  • Nominal Thread Size: 0.250 INCHES THIRD END IN
  • Thread Series Designator: NPT SECOND END
  • Thread Series Designator: NPT THIRD END
  • Thread Series Designator: NPT FIRST END
  • Nominal Thread Size: 0.500 INCHES FIRST END IN
  • Material: ZINC ALLOY BODY
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Zinc Alloy Body construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-00-073-3480, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Dressta North America Ltd. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-073-3480
Primary Part Number868536R92
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerDressta North America Ltd
StatusACTIVE
Nominal Thread Size0.375 INCHES SECOND END IN
Nominal Thread Size0.250 INCHES THIRD END IN
Thread Series DesignatorNPT SECOND END
Thread Series DesignatorNPT THIRD END
Thread Series DesignatorNPT FIRST END
Nominal Thread Size0.500 INCHES FIRST END IN
MaterialZINC ALLOY BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
2530-00-891-65513780208 INTERCHANGEABLE
Parts Kit,air-Hydraulic Brake SL
General Motors Llc Dba General Motors Llc
Cross-Reference Index
Part NumberManufacturer
868536R92 PRIMARY Dressta North America Ltd (USA)
997074R91 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
865756R91 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
NA20669A Haldex Brake Products Corporation (USA)
Related Parts
2530-00-891-6551INTERCHANGEABLE
PARTS KIT,AIR-HYDRAULIC BRAKE SL
3780208

Frequently Asked Questions

What is NSN 4820-00-073-3480?

NSN 4820-00-073-3480 is a Valve,safety Relief, manufactured by Dressta North America Ltd, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-073-3480?

NSN 4820-00-073-3480 has 4 cross-referenced part numbers: 868536R92 (Dressta North America Ltd), 997074R91 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), 865756R91 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), NA20669A (Haldex Brake Products Corporation).

What NSN replaces 4820-00-073-3480?

There is 1 known substitute for 4820-00-073-3480: 2530-00-891-6551. Verify interchangeability with system specifications before substitution.

What are the specifications of 868536R92?

Key specifications for 868536R92: Nominal Thread Size: 0.375 INCHES SECOND END IN; Nominal Thread Size: 0.250 INCHES THIRD END IN; Thread Series Designator: NPT SECOND END; Thread Series Designator: NPT THIRD END. 8 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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