PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11-284Valve,safety Relief

Actronics Incorporated Dba Actronics Inc · NSN 4820-01-081-7430 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-081-7430 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-081-7430. Primary manufacturer part number: 11-284.
Features
  • Valve,safety Relief — FSC 4820
  • Connection Type: UNTHREADED EXTERNAL TUBE FIRST END
  • Style Designator: STRAIGHT THRU
  • Bonnet Type: INSIDE SCREW
  • Surface Treatment: ANODIZE LOCATION NOT OTHERWISE SPECIFIED
  • Valve Operation Method: AUTOMATIC
  • Disk Loading Method: SPRING
  • Bonnet Attachment Method: THREADED
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-081-7430, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Actronics Incorporated Dba Actronics Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-081-7430
Primary Part Number11-284
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerActronics Incorporated Dba Actronics Inc
StatusACTIVE
Connection TypeUNTHREADED EXTERNAL TUBE FIRST END
Style DesignatorSTRAIGHT THRU
Bonnet TypeINSIDE SCREW
Surface TreatmentANODIZE LOCATION NOT OTHERWISE SPECIFIED
Valve Operation MethodAUTOMATIC
Disk Loading MethodSPRING
Bonnet Attachment MethodTHREADED
Flow Control DevicePOPPET
Nominal Outside Diameter Tube Accommodated0.281 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4320-00-146-47661655P INTERCHANGEABLE
Guard,valve
Curtiss-Wright Electro-Mechanical Corporation Div Epd
5136-00-729-567554232 INTERCHANGEABLE
Tap,thread Cutting
Tapco Cutting Tools Inc
1560-00-780-267611284 INTERCHANGEABLE
Baffle Assembly
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
5815-00-981-0067 INTERCHANGEABLE
Bar
6640-00-986-272111-284 INTERCHANGEABLE
Gage,cork and Rubbe
Fisher Scientific Co
6220-01-045-883780-0236-7 INTERCHANGEABLE
Panel,indicating,light Transmitt
Grimes Aerospace Company
6145-01-067-522511284 INTERCHANGEABLE
Cable,radio Frequency
Nexans Aerospace Usa Llc
5331-01-143-8256 INTERCHANGEABLE
O-Ring
5835-01-143-9143 INTERCHANGEABLE
Slide-Comb Set
2590-01-152-917211284 INTERCHANGEABLE
Kit,seal
Texas Hydraulics, Inc.
Cross-Reference Index
Part NumberManufacturer
11-284 PRIMARY Actronics Incorporated Dba Actronics Inc (USA)
723573 Meggitt Troy Inc (USA)
Related Parts
4320-00-146-4766INTERCHANGEABLE
GUARD,VALVE
1655P
5136-00-729-5675INTERCHANGEABLE
TAP,THREAD CUTTING
54232
1560-00-780-2676INTERCHANGEABLE
BAFFLE ASSEMBLY
11284
5815-00-981-0067INTERCHANGEABLE
BAR
6640-00-986-2721INTERCHANGEABLE
GAGE,CORK AND RUBBE
11-284
6220-01-045-8837INTERCHANGEABLE
PANEL,INDICATING,LIGHT TRANSMITT
80-0236-7
6145-01-067-5225INTERCHANGEABLE
CABLE,RADIO FREQUENCY
11284
5331-01-143-8256INTERCHANGEABLE
O-RING
5835-01-143-9143INTERCHANGEABLE
SLIDE-COMB SET
2590-01-152-9172INTERCHANGEABLE
KIT,SEAL
11284
4820-01-174-5935INTERCHANGEABLE
BASE,CYLINDER,VALVE
N16934
6130-01-294-7902INTERCHANGEABLE
POWER SUPPLY
11284

Frequently Asked Questions

What is NSN 4820-01-081-7430?

NSN 4820-01-081-7430 is a Valve,safety Relief, manufactured by Actronics Incorporated Dba Actronics Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-081-7430?

NSN 4820-01-081-7430 has 2 cross-referenced part numbers: 11-284 (Actronics Incorporated Dba Actronics Inc), 723573 (Meggitt Troy Inc).

What NSN replaces 4820-01-081-7430?

There are 12 known substitutes for 4820-01-081-7430: 4320-00-146-4766, 5136-00-729-5675, 1560-00-780-2676 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11-284?

Key specifications for 11-284: Connection Type: UNTHREADED EXTERNAL TUBE FIRST END; Style Designator: STRAIGHT THRU; Bonnet Type: INSIDE SCREW; Surface Treatment: ANODIZE LOCATION NOT OTHERWISE SPECIFIED. 9 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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