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4820-01-059-7291

Unloader Valve

Find complete technical information, availability, and procurement data for NSN 4820-01-059-7291 All details are based on official government and industry records to support accurate and compliant procurement.

4820-01-059-7291
Federal Supply Group
Valves
Federal Supply Classification
4820 Nonpowered Valves
National Stock Number
4820-01-059-7291
Item Name Code
77777
Assigment Date
04/15/1978 (48 years ago)

A thin, circular, metallic or nonmetallic item with a flat or prebulged cross-sectional shape, designed to rupture at a predetermined pressure to prevent damage to hydraulic or pneumatic systems, or the like. It may include multiple pieces, such as a retainer ring, disk and vacuum support. It can be used independently or as a component part of a head, safety, pressure relief. For items furnished with a holder, see head and disk, safety, pressure relief. For items without a rupture pressure rating, see disk, solid, plain. Excludes:diaphragm, valve, flat; diaphragm, valve, special shaped; disk, valve; and insulator, disk.

e32a-1 end item identification, "consists of 5 ea plug,soc.hd 1/8 npt; 2 ea elbow; 3 ea lockwasher y4; 3 ea capscrew 1/4-20 x 2 1/4; 1 ea cap; 1 ea spring; 1 ea lock-nut 1/4-20; 1 ea piston; 2 ea "o" ring; 1 ea back-up ring; 1 ea stem; 1 ea seat; 1 ea body; 1 ea screw; 1 ea nipple,hex" general characteristics item description

Characteristics

Below are the official specifications and performance details for this part, including technical data, material composition, and compliance information.

End Item Identification
e32a-1
General Characteristics Item Description
"consists of 5 ea plug,soc.hd 1/8 npt; 2 ea elbow; 3 ea lockwasher y4; 3 ea capscrew 1/4-20 x 2 1/4; 1 ea cap; 1 ea spring; 1 ea lock-nut 1/4-20; 1 ea piston; 2 ea "o" ring; 1 ea back-up ring; 1 ea stem; 1 ea seat; 1 ea body; 1 ea screw; 1 ea nipple,hex"

Classification Data

Detailed NSN information including identification codes, classification data, and key indicators used for cataloging, logistics, and supply management.

Type of Item Identification
M - Partial descriptive - reference item identification (type 1a concept)
Demilitarization
A - Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Criticality
X - The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Federal Item Identification Guide
A23900
Precious Metals Indicator
U - Precious metal content is unknown
Pseudo Item Name Code
1657782
Hazardous Material Indicator
N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Schedule B Code
8481809050

Freight Information

Comprehensive freight classifications, shipping codes, and handling specifications for domestic and international transport compliance.

Major Organizational Entity
TG
National Motor Freight Classification Item Number
127220
National Motor Freight Classification Sub-Item Number
X
Uniform Freight Classification Item Number
64490
National Motor Freight Class Rating
P - 77.5
Less than Car Load Rating
P - 77.5
Water Commodity
594 - Pumps and parts, (machinery and parts),(less than 35 feet)
Type of Cargo
Z - No special type of cargo code applicable
Special Hand
Z - Other or no special handling required (sh)
Air Dimension
A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
Air Commodity
AZ -
National Motor Freight Description
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 4820-01-059-7291

What is the FSCG of the NSN 4820-01-059-7291?
The FSCG of the NSN 4820-01-059-7291 is 4820
Does the NSN 4820-01-059-7291 have a Schedule B code assigned?
Yes, the Schedule B code is 8481809050
Does NSN 4820-01-059-7291 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 4820-01-059-7291 contain precious materials?
Precious metal content is unknown
Does NSN 4820-01-059-7291 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 4820-01-059-7291 was assigned to the Federal Catalog?
It was assigned 48 years ago, on Sat, Apr 15, 1978

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