PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1640-40-183Cup,oil,lubricating

Ametek Inc Heat Transfer Div · NSN 4730-00-534-6934 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-534-6934 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-534-6934. Primary manufacturer part number: 1640-40-183.
Features
  • Cup,oil,lubricating — FSC 4730
  • Thread Quantity Per Inch: 27
  • Nominal Thread Size: 0.125 INCHES IN
  • Height: 1.156 INCHES NOMINAL IN
  • Width Across Flats: 0.625 INCHES NOMINAL IN
  • Assembly Clearance Radius: 0.609 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Surface Treatment: NICKEL OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Cup,oil,lubricating, cataloged under National Stock Number 4730-00-534-6934, 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 Ametek Inc Heat Transfer Div. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-534-6934
Primary Part Number1640-40-183
Item NameCup,oil,lubricating
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerAmetek Inc Heat Transfer Div
StatusACTIVE
Thread Quantity Per Inch27
Nominal Thread Size0.125 INCHES IN
Height1.156 INCHES NOMINAL IN
Width Across Flats0.625 INCHES NOMINAL IN
Assembly Clearance Radius0.609 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Surface TreatmentNICKEL OVERALL
Style DesignatorSTRAIGHT, HINGED CAP
Screw Thread Series DesignatorNPT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5331-00-851-8695AS3578-040 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5950-01-367-8701 INTERCHANGEABLE
Reactor
5330-01-643-0032908007 INTERCHANGEABLE
Seal Ring,metal
Caterpillar Inc Div Caterpillar Defense
Cross-Reference Index
Part NumberManufacturer
5346934 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
908007 Sasco Inc Canadian Div
00112-0012-1 Apache Corp Gits Bros Mfg Co (USA)
1640-40-183 PRIMARY Ametek Inc Heat Transfer Div (USA)
112 Apache Corp Gits Bros Mfg Co (USA)
Related Parts
5331-00-851-8695INTERCHANGEABLE
O-RING
AS3578-040
5950-01-367-8701INTERCHANGEABLE
REACTOR
5330-01-643-0032INTERCHANGEABLE
SEAL RING,METAL
908007

Frequently Asked Questions

What is NSN 4730-00-534-6934?

NSN 4730-00-534-6934 is a Cup,oil,lubricating, manufactured by Ametek Inc Heat Transfer Div, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-534-6934?

NSN 4730-00-534-6934 has 5 cross-referenced part numbers: 5346934 (U S Army Tank Automotive Command Amsta-Im-Mm), 908007 (Sasco Inc Canadian Div), 00112-0012-1 (Apache Corp Gits Bros Mfg Co), 1640-40-183 (Ametek Inc Heat Transfer Div), 112 (Apache Corp Gits Bros Mfg Co).

What NSN replaces 4730-00-534-6934?

There are 3 known substitutes for 4730-00-534-6934: 5331-00-851-8695, 5950-01-367-8701, 5330-01-643-0032. Verify interchangeability with system specifications before substitution.

What are the specifications of 1640-40-183?

Key specifications for 1640-40-183: Thread Quantity Per Inch: 27; Special Features: THD LG 0.406 IN. IN; Nominal Thread Size: 0.125 INCHES IN; Height: 1.156 INCHES NOMINAL IN. 10 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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