PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-C-1213Cup,grease

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4730-00-256-3844 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-256-3844 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-256-3844. Primary manufacturer part number: MIL-C-1213.
Features
  • Cup,grease — FSC 4730
  • Thread Quantity Per Inch: 18
  • Height: 4.875 INCHES MAXIMUM IN
  • Screw Thread Series Designator: NPT
  • Nominal Thread Size: 0.250 INCHES IN
  • Assembly Clearance Radius: 1.000 INCHES NOMINAL IN
  • Grease Capacity: 1.500 OUNCES OZ
  • Material: COPPER ALLOY OVERALL
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Cup,grease, cataloged under National Stock Number 4730-00-256-3844, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-256-3844
Primary Part NumberMIL-C-1213
Item NameCup,grease
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Thread Quantity Per Inch18
Height4.875 INCHES MAXIMUM IN
Screw Thread Series DesignatorNPT
Nominal Thread Size0.250 INCHES IN
Assembly Clearance Radius1.000 INCHES NOMINAL IN
Grease Capacity1.500 OUNCES OZ
MaterialCOPPER ALLOY OVERALL
Style DesignatorSTRAIGHT, AUTOMATIC FEED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
4730-00-190-5570 INTERCHANGEABLE
Cup,grease
4730-00-190-5571 INTERCHANGEABLE
Cup,grease
4730-00-223-6393 INTERCHANGEABLE
Cup,grease
4730-00-256-3843 INTERCHANGEABLE
Cup,grease
4730-00-256-3846 INTERCHANGEABLE
Cup,grease
4730-00-288-84941-0-4 INTERCHANGEABLE
Cup,grease
Mid-State Sales, Inc. Div Defense Products Group
4730-00-288-8497 INTERCHANGEABLE
Cup,grease
4730-00-334-5449 INTERCHANGEABLE
Cup,grease
4730-01-075-0903803455-0-01 INTERCHANGEABLE
Cup,grease
Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-354-9966 INTERCHANGEABLE
Cup,grease
Cross-Reference Index
Part NumberManufacturer
MIL-C-1213 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILC1213TYPEB Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS35759-3 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
STYLE221 SIZE 1 Bowen Products Corp (USA)
Related Parts
4730-00-190-5570INTERCHANGEABLE
CUP,GREASE
4730-00-190-5571INTERCHANGEABLE
CUP,GREASE
4730-00-223-6393INTERCHANGEABLE
CUP,GREASE
4730-00-256-3843INTERCHANGEABLE
CUP,GREASE
4730-00-256-3846INTERCHANGEABLE
CUP,GREASE
4730-00-288-8494INTERCHANGEABLE
CUP,GREASE
1-0-4
4730-00-288-8497INTERCHANGEABLE
CUP,GREASE
4730-00-334-5449INTERCHANGEABLE
CUP,GREASE
4730-01-075-0903INTERCHANGEABLE
CUP,GREASE
803455-0-01
4730-01-354-9966INTERCHANGEABLE
CUP,GREASE

Frequently Asked Questions

What is NSN 4730-00-256-3844?

NSN 4730-00-256-3844 is a Cup,grease, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-256-3844?

NSN 4730-00-256-3844 has 4 cross-referenced part numbers: MIL-C-1213 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MILC1213TYPEB (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS35759-3 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), STYLE221 SIZE 1 (Bowen Products Corp).

What NSN replaces 4730-00-256-3844?

There are 10 known substitutes for 4730-00-256-3844: 4730-00-190-5570, 4730-00-190-5571, 4730-00-223-6393 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-C-1213?

Key specifications for MIL-C-1213: Thread Quantity Per Inch: 18; Height: 4.875 INCHES MAXIMUM IN; Screw Thread Series Designator: NPT; Nominal Thread Size: 0.250 INCHES IN. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-256-3844 still in active supply?

NSN 4730-00-256-3844 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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