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Technical Data Sheet
PartsTable / COMPONENT / 540-6786-002
540-6786-002 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 170 OR COPPER ALLOY 172, end_style: 90 DEGREE PARALLEL, ring_style: STRAIGHT GAP, usage_design: EXTERNAL OR INTERNAL, inside_diameter: 1.330 INCHES MINIMUM AND 1.345 INCHES MAXIMUM IN, major_thickness: 0.014 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-527-9922, 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
540-6786-002
NSN: 5325-00-527-9922
FSC: 5325
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
materialCOPPER ALLOY 170 OR COPPER ALLOY 172
end_style90 DEGREE PARALLEL
ring_styleSTRAIGHT GAP
usage_designEXTERNAL OR INTERNAL
inside_diameter1.330 INCHES MINIMUM AND 1.345 INCHES MAXIMUM IN
major_thickness0.014 INCHES NOMINAL IN
outside_diameter1.469 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating76.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 80.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationQQ-C-533, COND A FED SPEC SINGLE MATERIAL RESPONSE
NSN5325-00-527-9922
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 540-6786-002 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
OUTSIDE DIAMETER: 1.469 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-533, COND A FED SPEC SINGLE MATERIAL RESPONSE
•
MATERIAL: COPPER ALLOY 170 OR COPPER ALLOY 172
•
MATERIAL HARDNESS RATING: 76.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 80.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM
•
RING STYLE: STRAIGHT GAP
•
MAJOR THICKNESS: 0.014 INCHES NOMINAL IN
•
USAGE DESIGN: EXTERNAL OR INTERNAL
TECHNICAL CHARACTERISTICS (FLIS)
CASEHARDENING INDICATORNOT CASEHARDENED
OUTSIDE DIAMETER1.469 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-533, COND A FED SPEC SINGLE MATERIAL RESPONSE
MATERIALCOPPER ALLOY 170 OR COPPER ALLOY 172
MATERIAL HARDNESS RATING76.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 80.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM
RING STYLESTRAIGHT GAP
MAJOR THICKNESS0.014 INCHES NOMINAL IN
USAGE DESIGNEXTERNAL OR INTERNAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
END STYLE90 DEGREE PARALLEL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
1581000061Interchangeable
interchangeable cross-reference
interchangeable
A500734-14Interchangeable
interchangeable cross-reference
interchangeable
118553Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 540-6786-002?
540-6786-002 is a RING,RETAINING.
What parts can replace 540-6786-002?
There are 3 known substitutes for 540-6786-002: 1581000061, A500734-14, 118553. Substitute compatibility should be verified for your specific system.
What is the NSN for 540-6786-002?
540-6786-002 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-527-9922. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026