PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8-690Piston,linear Actuating Cylinder

Hader-Seitz Inc · NSN 3040-01-309-4149 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-309-4149 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-309-4149. Primary manufacturer part number: 8-690.
Features
  • Piston,linear Actuating Cylinder — FSC 3040
  • 1 verified cross-reference
  • Primary manufacturer: Hader-Seitz Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Piston,linear Actuating Cylinder, cataloged under National Stock Number 3040-01-309-4149, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Hader-Seitz Inc. This item has 1 commercial cross-reference 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
NSN3040-01-309-4149
Primary Part Number8-690
Item NamePiston,linear Actuating Cylinder
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerHader-Seitz Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-235-7095 INTERCHANGEABLE
Reactor
6640-00-290-684229-1200-09 INTERCHANGEABLE
Dish,evaporating
J & H Berge, Inc. Dba Lab Mart, the Div the Labmart
6640-00-290-6843 INTERCHANGEABLE
Dish,evaporating
6640-00-290-6846 INTERCHANGEABLE
Dish,evaporating
5930-00-470-0300 INTERCHANGEABLE
Switch,electrical
5360-00-738-07088690 INTERCHANGEABLE
Spring,helical,compression
Circor Aerospace, Inc. Div Circor
5120-00-966-8243220606 INTERCHANGEABLE
Nozzle,caulking Gun
Prc - Desoto International, Inc. Dba Prc-Desoto International, Inc Div Asc-Indianapolis
4930-00-975-95418690 INTERCHANGEABLE
Oiler,hand
Gc/waldom Inc
6685-00-987-3834 INTERCHANGEABLE
Tester,pyrometer and Thermocoupl
4820-01-263-95568690-6 ITEM 2 INTERCHANGEABLE
Disk,valve
William E Williams Valve Corp
Cross-Reference Index
Part NumberManufacturer
8-690 PRIMARY Hader-Seitz Inc (USA)
Related Parts
5950-00-235-7095INTERCHANGEABLE
REACTOR
6640-00-290-6842INTERCHANGEABLE
DISH,EVAPORATING
29-1200-09
6640-00-290-6843INTERCHANGEABLE
DISH,EVAPORATING
6640-00-290-6846INTERCHANGEABLE
DISH,EVAPORATING
5930-00-470-0300INTERCHANGEABLE
SWITCH,ELECTRICAL
5360-00-738-0708INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
8690
5120-00-966-8243INTERCHANGEABLE
NOZZLE,CAULKING GUN
220606
4930-00-975-9541INTERCHANGEABLE
OILER,HAND
8690
6685-00-987-3834INTERCHANGEABLE
TESTER,PYROMETER AND THERMOCOUPL
4820-01-263-9556INTERCHANGEABLE
DISK,VALVE
8690-6 ITEM 2
4820-01-264-0678INTERCHANGEABLE
SEAT,VALVE
8690-6 IN ITEM 8
4820-01-273-1410INTERCHANGEABLE
DISK,VALVE
8690-5 IN ITEM 2

Frequently Asked Questions

What is NSN 3040-01-309-4149?

NSN 3040-01-309-4149 is a Piston,linear Actuating Cylinder, manufactured by Hader-Seitz Inc, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-309-4149?

NSN 3040-01-309-4149 has 1 cross-referenced part number: 8-690 (Hader-Seitz Inc).

What NSN replaces 3040-01-309-4149?

There are 12 known substitutes for 3040-01-309-4149: 5950-00-235-7095, 6640-00-290-6842, 6640-00-290-6843 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8-690?

Key specifications for 8-690: Special Features: 10.000 IN.DIA BORE,2.750 IN.DIA ROD,4.000 IN.STROKE ON CYLINDER ASSY IN. 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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