PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1630-B1Fitting,lubrication

Alemite, Llc Dba Skf Usa Inc. · NSN 4730-00-218-5825 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-218-5825 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-218-5825. Primary manufacturer part number: 1630-B1.
Features
  • Fitting,lubrication — FSC 4730
  • Shank Length: 0.203 INCHES NOMINAL IN
  • Height: 0.734 INCHES NOMINAL IN
  • Criticality Code Justification: FEAT
  • Assembly Clearance Radius: 0.469 INCHES NOMINAL IN
  • Width Across Flats: 0.375 INCHES NOMINAL IN
  • Angle: 67.5 DEGREES
  • Material: STEEL OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Fitting,lubrication, cataloged under National Stock Number 4730-00-218-5825, 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 Alemite, Llc Dba Skf Usa Inc.. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 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
NSN4730-00-218-5825
Primary Part Number1630-B1
Item NameFitting,lubrication
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerAlemite, Llc Dba Skf Usa Inc.
StatusACTIVE
Shank Length0.203 INCHES NOMINAL IN
Height0.734 INCHES NOMINAL IN
Criticality Code JustificationFEAT
Assembly Clearance Radius0.469 INCHES NOMINAL IN
Width Across Flats0.375 INCHES NOMINAL IN
Angle67.5 DEGREES
MaterialSTEEL OVERALL
Style DesignatorANGLE
Surface TreatmentZINC OVERALL
Shank Diameter0.312 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5310-00-189-442053-31 INTERCHANGEABLE
Nut,plain,slotted,hexagon
Dresser Industries Inc Waukesha Engine Div
2030-00-393-3721 INTERCHANGEABLE
Tee,adapter
4510-00-482-4660400A INTERCHANGEABLE
Valve,flush
Fluidmaster Inc
5975-00-707-62293511 INTERCHANGEABLE
Box Connector,electrical
Raco, a Division of Hubbell Incorporated(delaware)
2520-00-736-8150 INTERCHANGEABLE
Shaft,high Reverse
6660-00-801-6393MARK II-WSI INTERCHANGEABLE
Indicator,wind Speed
Dwyer Instruments Inc
5965-00-831-0481B5331 INTERCHANGEABLE
Shield,microphone
Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled
3950-01-004-34305331 INTERCHANGEABLE
Hoist,chain
Yale Industrial Products, Inc. Div Duff Norton Company
5962-01-029-5072615575-901 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company
6930-01-054-15925331 INTERCHANGEABLE
Control,special
Superior Electric Holding Group Llc Div Specialty Product Technologies
Cross-Reference Index
Part NumberManufacturer
A336659 CAGE 00000
1630-B1 PRIMARY Alemite, Llc Dba Skf Usa Inc. (USA)
1630B Stewart-Warner Alemite Corp (USA)
1630 Stewart-Warner Alemite Sales Co Inc (USA)
5331 Mcneil Ohio Corp (USA)
587317 CAGE 00000
Related Parts
5310-00-189-4420INTERCHANGEABLE
NUT,PLAIN,SLOTTED,HEXAGON
53-31
2030-00-393-3721INTERCHANGEABLE
TEE,ADAPTER
4510-00-482-4660INTERCHANGEABLE
VALVE,FLUSH
400A
5975-00-707-6229INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
3511
2520-00-736-8150INTERCHANGEABLE
SHAFT,HIGH REVERSE
6660-00-801-6393INTERCHANGEABLE
INDICATOR,WIND SPEED
MARK II-WSI
5965-00-831-0481INTERCHANGEABLE
SHIELD,MICROPHONE
B5331
3950-01-004-3430INTERCHANGEABLE
HOIST,CHAIN
5331
5962-01-029-5072INTERCHANGEABLE
MICROCIRCUIT,MEMORY
615575-901
6930-01-054-1592INTERCHANGEABLE
CONTROL,SPECIAL
5331
5962-01-087-4712INTERCHANGEABLE
INTEGRATED CIRCUIT
5985-01-166-4002INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
533-1

Frequently Asked Questions

What is NSN 4730-00-218-5825?

NSN 4730-00-218-5825 is a Fitting,lubrication, manufactured by Alemite, Llc Dba Skf Usa Inc., classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-218-5825?

NSN 4730-00-218-5825 has 6 cross-referenced part numbers: A336659, 1630-B1 (Alemite, Llc Dba Skf Usa Inc.), 1630B (Stewart-Warner Alemite Corp), 1630 (Stewart-Warner Alemite Sales Co Inc), 5331 (Mcneil Ohio Corp) and 1 more.

What NSN replaces 4730-00-218-5825?

There are 12 known substitutes for 4730-00-218-5825: 5310-00-189-4420, 2030-00-393-3721, 4510-00-482-4660 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1630-B1?

Key specifications for 1630-B1: Shank Length: 0.203 INCHES NOMINAL IN; Special Features: WEAPON SYSTEM ESSENTIAL; Height: 0.734 INCHES NOMINAL IN; Criticality Code Justification: FEAT. 11 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com