PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

00520Cup,oil,lubricating

Gits Bros Mfg Co · NSN 4730-01-283-3811 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-283-3811 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-283-3811. Primary manufacturer part number: 00520.
Features
  • Cup,oil,lubricating — FSC 4730
  • Surface Treatment: NICKEL OVERALL
  • Height: 0.281 INCHES NOMINAL IN
  • Assembly Clearance Radius: 0.219 INCHES NOMINAL IN
  • Style Designator: STRAIGHT, W/BALL CHECK, W/SHOULDER
  • Shank Diameter: 0.188 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Shank Length: 0.250 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Cup,oil,lubricating, cataloged under National Stock Number 4730-01-283-3811, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Gits Bros Mfg Co. Government technical data includes 7 verified specifications, 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-283-3811
Primary Part Number00520
Item NameCup,oil,lubricating
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerGits Bros Mfg Co
StatusACTIVE
Surface TreatmentNICKEL OVERALL
Height0.281 INCHES NOMINAL IN
Assembly Clearance Radius0.219 INCHES NOMINAL IN
Style DesignatorSTRAIGHT, W/BALL CHECK, W/SHOULDER
Shank Diameter0.188 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Shank Length0.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5310-00-033-71123-66391 INTERCHANGEABLE
Washer,flat
The Boeing Company Div Defense
5331-00-248-38482601730-22 INTERCHANGEABLE
O-Ring
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
4730-00-278-575700520 INTERCHANGEABLE
Cup,oil,lubricating
Gits Mfg Co Inc
4730-00-707-3068 INTERCHANGEABLE
Cup,oil,lubricating
5331-01-147-074600520H INTERCHANGEABLE
O-Ring
Griswold Industries Dba Cla-Val Co
Cross-Reference Index
Part NumberManufacturer
00520 PRIMARY Gits Bros Mfg Co (USA)
Related Parts
5310-00-033-7112INTERCHANGEABLE
WASHER,FLAT
3-66391
5331-00-248-3848INTERCHANGEABLE
O-RING
2601730-22
4730-00-278-5757INTERCHANGEABLE
CUP,OIL,LUBRICATING
00520
4730-00-707-3068INTERCHANGEABLE
CUP,OIL,LUBRICATING
5331-01-147-0746INTERCHANGEABLE
O-RING
00520H

Frequently Asked Questions

What is NSN 4730-01-283-3811?

NSN 4730-01-283-3811 is a Cup,oil,lubricating, manufactured by Gits Bros Mfg Co, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-283-3811?

NSN 4730-01-283-3811 has 1 cross-referenced part number: 00520 (Gits Bros Mfg Co).

What NSN replaces 4730-01-283-3811?

There are 5 known substitutes for 4730-01-283-3811: 5310-00-033-7112, 5331-00-248-3848, 4730-00-278-5757 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 00520?

Key specifications for 00520: Surface Treatment: NICKEL OVERALL; Height: 0.281 INCHES NOMINAL IN; Assembly Clearance Radius: 0.219 INCHES NOMINAL IN; Style Designator: STRAIGHT, W/BALL CHECK, W/SHOULDER. 7 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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