PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-7658Collar,shaft

Oberdorfer Pumps Inc · NSN 3040-01-395-7335 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-395-7335 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-395-7335. Primary manufacturer part number: A-7658.
Features
  • Collar,shaft — FSC 3040
  • 3 verified cross-references
  • Primary manufacturer: Oberdorfer Pumps Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Collar,shaft, cataloged under National Stock Number 3040-01-395-7335, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Oberdorfer Pumps Inc. This item has 3 commercial cross-references from 3 manufacturers, 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
NSN3040-01-395-7335
Primary Part NumberA-7658
Item NameCollar,shaft
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerOberdorfer Pumps Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6340-00-485-578038119 INTERCHANGEABLE
Control,alarm
Setra Systems, Inc. Dba Gems Sensors
6130-00-541-73331658596 INTERCHANGEABLE
Power Supply Assembly
Lockheed Martin Corporation Div Rms - Mitchel Field
5950-01-147-6935280191 INTERCHANGEABLE
Transformer,power
Astra Products Co., Inc. of Tampa Dba Astra Products Co Inc of Tampa
5120-01-579-0382 INTERCHANGEABLE
Socket,socket Wrench
1560-01-724-679438119 INTERCHANGEABLE
Support,structural Component,air
Avtechtyee Inc Dba Avtech
Cross-Reference Index
Part NumberManufacturer
A-7658 PRIMARY Oberdorfer Pumps Inc (USA)
A-7658 Oberdorfer Foundries Inc (USA)
38119 Exstar International Corporation (USA)
Related Parts
6340-00-485-5780INTERCHANGEABLE
CONTROL,ALARM
38119
6130-00-541-7333INTERCHANGEABLE
POWER SUPPLY ASSEMBLY
1658596
5950-01-147-6935INTERCHANGEABLE
TRANSFORMER,POWER
280191
5120-01-579-0382INTERCHANGEABLE
SOCKET,SOCKET WRENCH
1560-01-724-6794INTERCHANGEABLE
SUPPORT,STRUCTURAL COMPONENT,AIR
38119

Frequently Asked Questions

What is NSN 3040-01-395-7335?

NSN 3040-01-395-7335 is a Collar,shaft, manufactured by Oberdorfer Pumps Inc, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-395-7335?

NSN 3040-01-395-7335 has 3 cross-referenced part numbers: A-7658 (Oberdorfer Pumps Inc), A-7658 (Oberdorfer Foundries Inc), 38119 (Exstar International Corporation).

What NSN replaces 3040-01-395-7335?

There are 5 known substitutes for 3040-01-395-7335: 6340-00-485-5780, 6130-00-541-7333, 5950-01-147-6935 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-7658?

Key specifications for A-7658: End Item Identification: PUMP, OBERDORFER PUMP INC. MODEL 815 AND WATER DESALINATOR PLANT, EXSTAR INTL CORP, XP1-400; LOGISTICS SUPPORT VESSEL. 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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