PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAT-DFDefoamer

Better Engineering Manufacturing Inc · NSN 7930-01-397-1990 · FSC 7930 · No Item Name Available
Verified by PartsTable
NSN 7930-01-397-1990 — this item is cataloged by the U.S. Government under National Stock Number 7930-01-397-1990. Primary manufacturer part number: NAT-DF.
Features
  • Defoamer — FSC 7930
  • General Characteristics Item Description: CONCENTRATED AND BIODEGRADABLE SILICATED DEFOAMER DESIGNED TO KEEP HIGH DETERGENT OILS AND GREASES FROM FOAMING IN SPRAY WASHERS; THE EFFECTIVE USE CONCENTRATION SHALL BE 4 OUNCES PER 50 GALLONS OZ
  • 2 verified cross-references
  • Primary manufacturer: Better Engineering Manufacturing Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Defoamer, cataloged under National Stock Number 7930-01-397-1990, is classified within Federal Supply Class 7930 (No Item Name Available) of the Cleaning Equipment and Supplies group. The primary manufacturer of record is Better Engineering Manufacturing Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN7930-01-397-1990
Primary Part NumberNAT-DF
Item NameDefoamer
FSC / FSG7930 / 79 — No Item Name Available
ManufacturerBetter Engineering Manufacturing Inc
StatusACTIVE
General Characteristics Item DescriptionCONCENTRATED AND BIODEGRADABLE SILICATED DEFOAMER DESIGNED TO KEEP HIGH DETERGENT OILS AND GREASES FROM FOAMING IN SPRAY WASHERS; THE EFFECTIVE USE CONCENTRATION SHALL BE 4 OUNCES PER 50 GALLONS OZ
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-155-64531317S INTERCHANGEABLE
Bearing,ball,annular
Federal-Mogul Corp Government Sales Dept
3110-00-156-7620 INTERCHANGEABLE
Bearing,ball,annular
3455-00-230-7047717-015663 INTERCHANGEABLE
Cutter,milling,plain
Doall Baltimore Company
4730-00-277-6386 INTERCHANGEABLE
Adapter,straight,pipe to Hose
2825-00-388-68357315 INTERCHANGEABLE
Weight Arm Assembly
Northrop Grumman Systems Corporation Div Marine Systems
5998-00-456-4905007317 INTERCHANGEABLE
Circuit Card Assembly
Drs Signal Solutions, Inc.
5940-00-718-99191112945-19 INTERCHANGEABLE
Terminal,lug
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5950-00-844-80507317 INTERCHANGEABLE
Coil,radio Frequency
Vanguard Electronics, Llc
4720-01-484-8032136283-3 INTERCHANGEABLE
Hose Assembly,nonmetallic
Cadillac Gage Textron Inc.
3110-01-515-63853208A2RS1TN9MT33 INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
Cross-Reference Index
Part NumberManufacturer
NAT-DF PRIMARY Better Engineering Manufacturing Inc (USA)
7317 PRIMARY Better Engineering Manufacturing Inc (USA)
Related Parts
3110-00-155-6453INTERCHANGEABLE
BEARING,BALL,ANNULAR
1317S
3110-00-156-7620INTERCHANGEABLE
BEARING,BALL,ANNULAR
3455-00-230-7047INTERCHANGEABLE
CUTTER,MILLING,PLAIN
717-015663
4730-00-277-6386INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO HOSE
2825-00-388-6835INTERCHANGEABLE
WEIGHT ARM ASSEMBLY
7315
5998-00-456-4905INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
007317
5940-00-718-9919INTERCHANGEABLE
TERMINAL,LUG
1112945-19
5950-00-844-8050INTERCHANGEABLE
COIL,RADIO FREQUENCY
7317
4720-01-484-8032INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
136283-3
3110-01-515-6385INTERCHANGEABLE
BEARING,BALL,ANNULAR
3208A2RS1TN9MT33
5306-01-613-1703INTERCHANGEABLE
BOLT,U
7317
5925-01-718-6766INTERCHANGEABLE
CIRCUIT BREAKER
7317

Frequently Asked Questions

What is NSN 7930-01-397-1990?

NSN 7930-01-397-1990 is a Defoamer, manufactured by Better Engineering Manufacturing Inc, classified under FSC 7930 (No Item Name Available). Status: active.

What are the part numbers for NSN 7930-01-397-1990?

NSN 7930-01-397-1990 has 2 cross-referenced part numbers: NAT-DF (Better Engineering Manufacturing Inc), 7317 (Better Engineering Manufacturing Inc).

What NSN replaces 7930-01-397-1990?

There are 12 known substitutes for 7930-01-397-1990: 3110-00-155-6453, 3110-00-156-7620, 3455-00-230-7047 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NAT-DF?

Key specifications for NAT-DF: General Characteristics Item Description: CONCENTRATED AND BIODEGRADABLE SILICATED DEFOAMER DESIGNED TO KEEP HIGH DETERGENT OILS AND GREASES FROM FOAMING IN SPRAY WASHERS; THE EFFECTIVE USE CONCENTRATION SHALL BE 4 OUNCES PER 50 GALLONS OZ. 1 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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