PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

30122Boot,dust and Moisture Seal

Multi-Flex Seals Inc · NSN 5340-01-065-0490 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-065-0490 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-065-0490. Primary manufacturer part number: 30122.
Features
  • Boot,dust and Moisture Seal — FSC 5340
  • Thread Quantity Per Inch: 28
  • Thread Length: 0.188 INCHES NOMINAL IN
  • Material: COPPER ALLOY AND RUBBER SYNTHETIC BODY
  • Style Designator: THRU-HOLE
  • Width Across Flats: 0.510 INCHES NOMINAL IN
  • Base Thread Location: INTERNAL
  • Nominal Thread Size: 0.375 INCHES IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Copper Alloy and Rubber Synthetic Body construction
General Description

The Boot,dust and Moisture Seal, cataloged under National Stock Number 5340-01-065-0490, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Multi-Flex Seals Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-065-0490
Primary Part Number30122
Item NameBoot,dust and Moisture Seal
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerMulti-Flex Seals Inc
StatusACTIVE
Thread Quantity Per Inch28
Thread Length0.188 INCHES NOMINAL IN
MaterialCOPPER ALLOY AND RUBBER SYNTHETIC BODY
Style DesignatorTHRU-HOLE
Width Across Flats0.510 INCHES NOMINAL IN
Base Thread LocationINTERNAL
Nominal Thread Size0.375 INCHES IN
Sealing MethodCOMPRESSION
Thread SeriesUN
Mounting MethodTHREAD
Thread Class2A A
Opening Inside Diameter0.188 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 9
4820-00-096-932830122 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Fairchild Industrial Products Company
3455-00-194-051810170 INTERCHANGEABLE
Cutter,milling,plain
Niagara Cutter Inc
1420-00-961-7061301-2-2 INTERCHANGEABLE
Boot,dust and Moist
Burke Industries Purosil Div
5331-01-046-33002-012N756-75 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
3110-01-103-1566 INTERCHANGEABLE
Cone,roller
5365-01-154-66923012-2 INTERCHANGEABLE
Spacer,sleeve
Leidos, Inc. Div Cyber and Information Solutions Services
5950-01-298-585830122 INTERCHANGEABLE
Transformer,power
Hunzicker Brothers Inc
6210-01-316-935530122 INTERCHANGEABLE
Lens,light
Osram Sylvania Inc
8030-01-642-0089 INTERCHANGEABLE
Activator-Cleaner,inert Surface
Cross-Reference Index
Part NumberManufacturer
MILB5423TYCSIZE 2 Zf Industrieantriebe Witten Gmbh (DEU)
870093 Datron World Communications, Inc. (USA)
30122 PRIMARY Multi-Flex Seals Inc (USA)
Related Parts
4820-00-096-9328INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
30122
3455-00-194-0518INTERCHANGEABLE
CUTTER,MILLING,PLAIN
10170
1420-00-961-7061INTERCHANGEABLE
BOOT,DUST AND MOIST
301-2-2
5331-01-046-3300INTERCHANGEABLE
O-RING
2-012N756-75
3110-01-103-1566INTERCHANGEABLE
CONE,ROLLER
5365-01-154-6692INTERCHANGEABLE
SPACER,SLEEVE
3012-2
5950-01-298-5858INTERCHANGEABLE
TRANSFORMER,POWER
30122
6210-01-316-9355INTERCHANGEABLE
LENS,LIGHT
30122
8030-01-642-0089INTERCHANGEABLE
ACTIVATOR-CLEANER,INERT SURFACE

Frequently Asked Questions

What is NSN 5340-01-065-0490?

NSN 5340-01-065-0490 is a Boot,dust and Moisture Seal, manufactured by Multi-Flex Seals Inc, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-065-0490?

NSN 5340-01-065-0490 has 3 cross-referenced part numbers: MILB5423TYCSIZE 2 (Zf Industrieantriebe Witten Gmbh), 870093 (Datron World Communications, Inc.), 30122 (Multi-Flex Seals Inc).

What NSN replaces 5340-01-065-0490?

There are 9 known substitutes for 5340-01-065-0490: 4820-00-096-9328, 3455-00-194-0518, 1420-00-961-7061 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 30122?

Key specifications for 30122: Thread Quantity Per Inch: 28; Thread Length: 0.188 INCHES NOMINAL IN; Material: COPPER ALLOY AND RUBBER SYNTHETIC BODY; Style Designator: THRU-HOLE. 13 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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