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Technical Data Sheet
264338 ✓ 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 CROSS,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OVERALL, leg_length: 1.110 INCHES NOMINAL SECOND END IN, seat_angle: 37.0 DEGREES ALL ENDS, thread_class: 3A ALL ENDS A, connection_type: THREADED EXTERNAL BOSS THIRD END, connection_style: FLARED (TUBE) FIRST END BULKHEAD. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-582-9846, 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
264338
NSN: 5310-00-582-9846
FSC: 5310
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OVERALL
leg_length1.110 INCHES NOMINAL SECOND END IN
seat_angle37.0 DEGREES ALL ENDS
thread_class3A ALL ENDS A
connection_typeTHREADED EXTERNAL BOSS THIRD END
connection_styleFLARED (TUBE) FIRST END BULKHEAD
special_featuresFINISHED SURFACES TO F-1.20
nominal_thread_size0.563 INCHES THIRD END IN
end_item_identificationB-52 STRATOFORTRESS
thread_quantity_per_inch16 FIRST END BULKHEAD
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
material_document_and_classificationMIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-582-9846
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 264338 · 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
MATERIAL THICKNESS: 0.062 INCHES NOMINAL IN
MATERIAL: PAPER OVERALL
STYLE DESIGNATOR: SHOULDERED
SHOULDER DIAMETER: 0.246 INCHES NOMINAL IN
SHOULDER HEIGHT: 0.031 INCHES NOMINAL IN
OUTSIDE DIAMETER: 0.375 INCHES NOMINAL IN
HOLE DIAMETER: 0.172 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.062 INCHES NOMINAL IN
MATERIALPAPER OVERALL
STYLE DESIGNATORSHOULDERED
SHOULDER DIAMETER0.246 INCHES NOMINAL IN
SHOULDER HEIGHT0.031 INCHES NOMINAL IN
OUTSIDE DIAMETER0.375 INCHES NOMINAL IN
HOLE DIAMETER0.172 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
2155Interchangeable
interchangeable cross-reference
interchangeable
1617823Interchangeable
interchangeable cross-reference
interchangeable
BUWEPSDWG1617823Interchangeable
interchangeable cross-reference
interchangeable
MS35333-113Interchangeable
interchangeable cross-reference
interchangeable
MILW6986TYPEAInterchangeable
interchangeable cross-reference
interchangeable
13230E6743Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 264338?
264338 is a CROSS,TUBE TO BOSS.
What parts can replace 264338?
There are 22 known substitutes for 264338: 2155, 1617823, BUWEPSDWG1617823 and 19 more. Substitute compatibility should be verified for your specific system.
Is 264338 still available?
264338 is currently cancelled.
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