PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

400-598Valve,safety Relief

Ameripack Inc. · NSN 4820-01-434-2978 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-434-2978 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-434-2978. Primary manufacturer part number: 400-598.
Features
  • Valve,safety Relief — FSC 4820
  • Valve Operation Method: AUTOMATIC
  • 1 verified cross-reference
  • Primary manufacturer: Ameripack Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-434-2978, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Ameripack Inc.. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-434-2978
Primary Part Number400-598
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAmeripack Inc.
StatusACTIVE
Valve Operation MethodAUTOMATIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5325-00-730-704891117 INTERCHANGEABLE
Grommet,nonmetallic
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
5995-01-070-4641400598 INTERCHANGEABLE
Cable Assembly
Telemechanics Inc
6120-01-616-5421400598 INTERCHANGEABLE
Transformer,power
Clarus Fluid Intelligence, Llc Div Clarus Fluid Intelligence
Cross-Reference Index
Part NumberManufacturer
400-598 PRIMARY Ameripack Inc. (USA)
Related Parts
5325-00-730-7048INTERCHANGEABLE
GROMMET,NONMETALLIC
91117
5995-01-070-4641INTERCHANGEABLE
CABLE ASSEMBLY
400598
6120-01-616-5421INTERCHANGEABLE
TRANSFORMER,POWER
400598

Frequently Asked Questions

What is NSN 4820-01-434-2978?

NSN 4820-01-434-2978 is a Valve,safety Relief, manufactured by Ameripack Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-434-2978?

NSN 4820-01-434-2978 has 1 cross-referenced part number: 400-598 (Ameripack Inc.).

What NSN replaces 4820-01-434-2978?

There are 3 known substitutes for 4820-01-434-2978: 5325-00-730-7048, 5995-01-070-4641, 6120-01-616-5421. Verify interchangeability with system specifications before substitution.

What are the specifications of 400-598?

Key specifications for 400-598: Valve Operation Method: AUTOMATIC; End Item Identification: 5895-01-384-1342. 2 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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