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Technical Data Sheet
PartsTable / COMPONENT / 42R2052-502
42R2052-502 ✓ 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: STEEL, usage_design: EXTERNAL, inside_diameter: 0.157 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN, major_thickness: 0.013 INCHES MINIMUM AND 0.017 INCHES MAXIMUM IN, casehardening_indicator: NOT CASEHARDENED, material_hardness_rating: 86.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 88.5 ROCKWELL SUPERFICIAL 15-N MAXIMUM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-282-5340, 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
42R2052-502
NSN: 5325-00-282-5340
FSC: 5325
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL
ring_styleC
usage_designEXTERNAL
inside_diameter0.157 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
major_thickness0.013 INCHES MINIMUM AND 0.017 INCHES MAXIMUM IN
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating86.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 88.5 ROCKWELL SUPERFICIAL 15-N MAXIMUM
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationFED STD 66,1066 TO 1090 FED STD SINGLE MATERIAL RESPONSE
NSN5325-00-282-5340
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 42R2052-502 · 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
•
INSIDE DIAMETER: 0.157 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
•
MATERIAL: STEEL
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66,1066 TO 1090 FED STD SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
MATERIAL HARDNESS RATING: 86.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 88.5 ROCKWELL SUPERFICIAL 15-N MAXIMUM
•
RING STYLE: C
•
MAJOR THICKNESS: 0.013 INCHES MINIMUM AND 0.017 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CASEHARDENING INDICATORNOT CASEHARDENED
INSIDE DIAMETER0.157 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
MATERIALSTEEL
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66,1066 TO 1090 FED STD SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MATERIAL HARDNESS RATING86.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 88.5 ROCKWELL SUPERFICIAL 15-N MAXIMUM
RING STYLEC
MAJOR THICKNESS0.013 INCHES MINIMUM AND 0.017 INCHES MAXIMUM IN
USAGE DESIGNEXTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
02005Interchangeable
interchangeable cross-reference
interchangeable
53N59Interchangeable
interchangeable cross-reference
interchangeable
305232Interchangeable
interchangeable cross-reference
interchangeable
A-A-2563Interchangeable
interchangeable cross-reference
interchangeable
16170Interchangeable
interchangeable cross-reference
interchangeable
6002-231Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 42R2052-502?
42R2052-502 is a RING,RETAINING.
What parts can replace 42R2052-502?
There are 22 known substitutes for 42R2052-502: 02005, 53N59, 305232 and 19 more. Substitute compatibility should be verified for your specific system.
Is 42R2052-502 still available?
42R2052-502 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: July 2026