4820-01-441-6647
Safety Relief Valve
Find complete technical information, availability, and procurement data for NSN 4820-01-441-6647 All details are based on official government and industry records to support accurate and compliant procurement.
Federal Supply Group
Valves
Federal Supply Classification
4820 Nonpowered Valves
National Stock Number
4820-01-441-6647
Item Name Code
05488
Assigment Date
02/20/1997 (29 years ago)
A switch which is externally actuated by a lever and whose contacts open and close with an instantaneous (snap) action; includes items having one or more momentary positions. Includes switches (snap action) which use mercury to bridge contacts, and assemblages of complete switches (snap action) having common actuators. Excludes:switch,lever; switch,rotary; switch,knife; switch,sensitive; and switch,box.
3a all ends thread class, 185.0 fahrenheit 1st response maximum operating temp, 250.0 fahrenheit 2nd response maximum operating temp, 2.0 cubic feet per minute valve discharge flow rate, right-hand all ends thread direction
Characteristics
Below are the official specifications and performance details for this part, including technical data, material composition, and compliance information.
- Thread Class
- 3a all ends
- Thread Direction
- right-hand all ends
- Valve Discharge Flow Rate
- 2.0 cubic feet per minute
- Maximum Operating Temp
- 185.0 fahrenheit 1st response
- Maximum Operating Temp
- 250.0 fahrenheit 2nd response
- Minimum Operating Temp
- -65.0 fahrenheit
- End Item Identification
- aircraft;e-2c hawkeye
- Connection Style
- external seat for gasket seal (boss) all ends
- Valve Operation Method
- automatic
- Connection Type
- threaded external boss all ends
- Thread Quantity Per Inch
- 12 all ends
- Nominal Thread Size
- 1.062 inches all ends
- Seat Angle
- 37.0 degrees all ends
- Special Features
- o/a lg 4.250 in.
- Material
- aluminum alloy body
- Media For Which Designed
- air 1st response
- Media For Which Designed
- fuel/oil, hydrocarbon 2nd response
- Surface Treatment
- anodize
- Style Designator
- straight thru note: to be used for valve bodies of one section only.
- Thread Series Designator
- un all ends
Replaces National Stock Numbers
Below is a list of NSNs that have been officially replaced by the NSN 4820-01-441-6647
| NSN | Name | Date |
|---|---|---|
| 4820-00-078-9514 | No Name Available | 10/01/2001 |
Related Parts & Specifications
This NSN includes a range of related parts designed for specific operational needs. Review each item below to find in-depth specifications, functional details, and guidance for correct application and replacement.
| Part Number | Name |
|---|---|
| 123SCP101 | Safety Relief Valve |
| 123SCP101-3 | Safety Relief Valve |
| 123SCP101-501 | Safety Relief Valve |
| 15-158-101 | Safety Relief Valve |
| 15-158-201 | Safety Relief Valve |
| 15-158-301 | Safety Relief Valve |
Classification Data
Detailed NSN information including identification codes, classification data, and key indicators used for cataloging, logistics, and supply management.
- Type of Item Identification
- Demilitarization
- Criticality
- Federal Item Identification Guide
- Precious Metals Indicator
- Pseudo Item Name Code
- Hazardous Material Indicator
- Schedule B Code
- 4 - Partial descriptive item identification (type 1 concept)
- B - Usml items - mutilation to the point of scrap required worldwide. (note 7).
- X - The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
- A046B0
- A - Item does not contain precious metal.
- 0005488
- N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
- 8481400000
Freight Information
Comprehensive freight classifications, shipping codes, and handling specifications for domestic and international transport compliance.
- Major Organizational Entity
- National Motor Freight Classification Item Number
- National Motor Freight Classification Sub-Item Number
- Uniform Freight Classification Item Number
- National Motor Freight Class Rating
- Water Commodity
- Type of Cargo
- Special Hand
- Air Dimension
- Air Commodity
- National Motor Freight Description
- AX
- 127220
- X
- 64490
- P - 77.5
- 594 - Pumps and parts, (machinery and parts),(less than 35 feet)
- Z - No special type of cargo code applicable
- 9 - Other or no special handling required (sh)
- A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
- VZ -
- pressure reg/red/relief valves noi
FAQs
Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for 4820-01-441-6647
What is the FSCG of the NSN 4820-01-441-6647?
The FSCG of the NSN 4820-01-441-6647 is 4820
Does the NSN 4820-01-441-6647 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-01-441-6647 require demilitarization?
Usml items - mutilation to the point of scrap required worldwide. (note 7).
Does NSN 4820-01-441-6647 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-441-6647 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 4820-01-441-6647 was assigned to the Federal Catalog?
It was assigned 29 years ago, on Thu, Feb 20, 1997
Need Consumables?
Running low on essential supplies? Explore our extensive catalog of high-quality consumables designed to keep your operations on track.
Recommended for You
Discover a selection of other high-demand NSN components from our catalog. These featured parts are frequently sourced by procurement teams across defense, aerospace, and industrial sectors.
Price & Availability
Fill out the form to get accurate pricing, lead time, and stock details from our NSN specialists:
FREE
