Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW
The BOOT,DUST AND MOISTURE SEAL is a the manufacturer industrial component. Key specifications include material: RUBBER SILICONE BODY, thread_class: 2B, thread_length: 0.188 INCHES NOMINAL IN, thread_series: UNEF, overall_height: 0.219 INCHES NOMINAL IN, sealing_method: MECHANICAL. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-681-0581, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.
Verify compatibility with your specific system configuration before ordering.
WHERE IT FITS
TYPECCLASSISIZE2
NSN:5340-00-681-0581 FSC:5340 CAGE:81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
material
RUBBER SILICONE BODY
thread_class
2B
thread_length
0.188 INCHES NOMINAL IN
thread_series
UNEF
overall_height
0.219 INCHES NOMINAL IN
sealing_method
MECHANICAL
mounting_method
INTEGRAL THREADED NUT
style_designator
THRU-HOLE
nominal_thread_size
0.375 INCHES IN
base_thread_location
INTERNAL
body_outside_diameter
0.500 INCHES NOMINAL IN
opening_inside_diameter
0.250 INCHES NOMINAL IN
NSN
5340-00-681-0581
COMPONENT DIAGRAM
KEY FEATURES
•
MOUNTING DEVICE QUANTITY: 1
•
OPENING INSIDE DIAMETER: 0.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: THRU-HOLE
•
BASE THREAD LOCATION: INTERNAL
•
THREAD LENGTH: 0.188 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 32
•
TEST DATA DOCUMENT: 81349-MILB12957 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING DEVICE QUANTITY
1
OPENING INSIDE DIAMETER
0.250 INCHES NOMINAL IN
STYLE DESIGNATOR
THRU-HOLE
BASE THREAD LOCATION
INTERNAL
THREAD LENGTH
0.188 INCHES NOMINAL IN
THREAD QUANTITY PER INCH
32
OVERALL HEIGHT
0.219 INCHES NOMINAL IN
TEST DATA DOCUMENT
81349-MILB12957 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
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FREQUENTLY ASKED QUESTIONS
What is TYPECCLASSISIZE2?
TYPECCLASSISIZE2 is a BOOT,DUST AND MOISTURE SEAL.
What parts can replace TYPECCLASSISIZE2?
There are 3 known substitutes for TYPECCLASSISIZE2: NC3030-RED, TYPEBSTYLE2SIZE1, MILB19257. Substitute compatibility should be verified for your specific system.
What is the NSN for TYPECCLASSISIZE2?
TYPECCLASSISIZE2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-681-0581. This indicates validated use in U.S. government and defense supply chains.
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