PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A400Valve,safety Relief

Continental N H 3 Products Company Inc Dba Continental Manufacturing · NSN 4820-01-267-1328 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-267-1328 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-267-1328. Primary manufacturer part number: A400.
Features
  • Valve,safety Relief — FSC 4820
  • 3 verified cross-references
  • Primary manufacturer: Continental N H 3 Products Company Inc Dba Continental Manufacturing
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-267-1328, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Continental N H 3 Products Company Inc Dba Continental Manufacturing. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 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)
ManufacturersLandoll Company, Llc (CAGE 65459); Continental N H 3 Products Company Inc Dba Continental Manufacturing (CAGE 0AVL9)
Technical Specifications
ParameterValue
NSN4820-01-267-1328
Primary Part NumberA400
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerContinental N H 3 Products Company Inc Dba Continental Manufacturing
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5325-00-275-44641298861-1 INTERCHANGEABLE
Eyelet,metallic
Honeywell Intl Inc Defense Avionics Systems
5999-00-369-1464563-4902-1009469PC1H INTERCHANGEABLE
Contact,electrical
Naval Ship Systems Command
5340-00-532-92313B1084 INTERCHANGEABLE
Clamp,loop
Napco International Llc Dba Napco International Inc
5975-00-819-1860BBU-400 INTERCHANGEABLE
Bushing,electrical Conduit
Egs Electrical Group Appleton Div
4730-01-028-5038FC9395-0606S INTERCHANGEABLE
Adapter,straight,pipe to Hose
Danfoss Power Solutions II, Llc
6640-01-086-4148 INTERCHANGEABLE
Filter Unit,microporous
5961-01-115-7387 INTERCHANGEABLE
Transistor
5310-01-445-7647122-4322691 P/N 21 INTERCHANGEABLE
Washer,flat
Naval Sea Systems Command
5930-01-491-1416297704439 INTERCHANGEABLE
Switch,flow
Dometic Environmental Corp
5945-01-520-45091616056-1 INTERCHANGEABLE
Relay,hybrid
Te Connectivity Corporation
Cross-Reference Index
Part NumberManufacturer
519-4749 Landoll Company, Llc (USA)
A400 PRIMARY Continental N H 3 Products Company Inc Dba Continental Manufacturing (USA)
519-9579 PRIMARY Landoll Company, Llc (USA)
Related Parts
5325-00-275-4464INTERCHANGEABLE
EYELET,METALLIC
1298861-1
5999-00-369-1464INTERCHANGEABLE
CONTACT,ELECTRICAL
563-4902-1009469PC1H
5340-00-532-9231INTERCHANGEABLE
CLAMP,LOOP
3B1084
5975-00-819-1860INTERCHANGEABLE
BUSHING,ELECTRICAL CONDUIT
BBU-400
4730-01-028-5038INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO HOSE
FC9395-0606S
6640-01-086-4148INTERCHANGEABLE
FILTER UNIT,MICROPOROUS
5961-01-115-7387INTERCHANGEABLE
TRANSISTOR
5310-01-445-7647INTERCHANGEABLE
WASHER,FLAT
122-4322691 P/N 21
5930-01-491-1416INTERCHANGEABLE
SWITCH,FLOW
297704439
5945-01-520-4509INTERCHANGEABLE
RELAY,HYBRID
1616056-1
5975-01-663-5700INTERCHANGEABLE
COVER,JUNCTION BOX
A400

Frequently Asked Questions

What is NSN 4820-01-267-1328?

NSN 4820-01-267-1328 is a Valve,safety Relief, manufactured by Continental N H 3 Products Company Inc Dba Continental Manufacturing, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-267-1328?

NSN 4820-01-267-1328 has 3 cross-referenced part numbers: 519-4749 (Landoll Company, Llc), A400 (Continental N H 3 Products Company Inc Dba Continental Manufacturing), 519-9579 (Landoll Company, Llc).

What NSN replaces 4820-01-267-1328?

There are 11 known substitutes for 4820-01-267-1328: 5325-00-275-4464, 5999-00-369-1464, 5340-00-532-9231 and 8 more. Verify interchangeability with system specifications before substitution.

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