PartsTable
Technical Data Sheet
530349-1 ✓ Verified by PartsTable
· NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The HELIUM PROBE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OVERALL, nut_style: SLEEVE, nut_length: 0.312 INCHES NOMINAL IN, nut_diameter: 0.175 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNEF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-881-1000, 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
530349-1
NSN: 5310-00-881-1000
FSC: 5310
CAGE: 70210 — HONEYWELL INTERNATIONAL INC. DIV AEROSPACE - TORRANCE (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OVERALL
nut_styleSLEEVE
nut_length0.312 INCHES NOMINAL IN
nut_diameter0.175 INCHES NOMINAL IN
thread_class3B
thread_seriesUNEF
flange_diameter1.600 INCHES NOMINAL IN
hardness_rating40.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM
flange_thickness0.140 INCHES NOMINAL IN
thread_directionLEFT-HAND
countersink_angle120.0 DEGREES NOMINAL NUT
nominal_thread_size1.000 INCHES IN
NSN5310-00-881-1000
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 530349-1 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
THREAD DIRECTION: LEFT-HAND
HOLE CONFIGURATION STYLE: CONFIGURATION J
TEST DATA DOCUMENT: 81349-MIL-T-6868 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.).
MATERIAL: STEEL COMP 4130 OVERALL
THREAD SERIES: UNEF
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
COUNTERSINK ANGLE: 120.0 DEGREES NOMINAL NUT
THREAD CLASS: 3B
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONLEFT-HAND
HOLE CONFIGURATION STYLECONFIGURATION J
TEST DATA DOCUMENT81349-MIL-T-6868 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.).
MATERIALSTEEL COMP 4130 OVERALL
THREAD SERIESUNEF
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
COUNTERSINK ANGLE120.0 DEGREES NOMINAL NUT
THREAD CLASS3B
HOLE TYPE AND QUANTITY3 DRILLED
CROSS-SECTIONAL SHAPEROUND NUT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
41591Interchangeable
interchangeable cross-reference
interchangeable
1330-149-1Interchangeable
interchangeable cross-reference
interchangeable
530349-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 530349-1?
530349-1 is a HELIUM PROBE.
What parts can replace 530349-1?
There are 3 known substitutes for 530349-1: 41591, 1330-149-1, 530349-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 530349-1?
530349-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-881-1000. This indicates validated use in U.S. government and defense supply chains.
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