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393835 — RING,PISTON

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

393835: RING,PISTON.

The RING,PISTON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1117 OR STEEL COMP 1215, thread_class: 2A LOCATION NOT OTHERWISE SPECIFIED A, head_diameter: 0.510 INCHES MINIMUM AND 0.512 INCHES MAXIMUM IN, neck_diameter: 0.290 INCHES NOMINAL IN, thread_length: 0.470 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_length: 1.380 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-140-6594, 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
393835
NSN: 5307-01-140-6594
NIINs: 011406594, 012439127
FSC: 5307 — Studs
CAGE: 55787 — STABILUS (USA)
SPECIFICATIONS
materialSTEEL COMP 1117 OR STEEL COMP 1215
thread_class2A LOCATION NOT OTHERWISE SPECIFIED A
head_diameter0.510 INCHES MINIMUM AND 0.512 INCHES MAXIMUM IN
neck_diameter0.290 INCHES NOMINAL IN
thread_length0.470 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_length1.380 INCHES NOMINAL IN
style_designatorBALL
thread_directionRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
surface_treatmentCHROMIUM OVERALL
nominal_thread_size0.3125 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
distance_across_flats0.562 INCHES NOMINAL IN
thread_quantity_per_inch18 LOCATION NOT OTHERWISE SPECIFIED
NSN5307-01-140-6594
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 393835 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.470 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
STYLE DESIGNATOR: BALL
•
THREAD DIRECTION: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
•
NOMINAL THREAD SIZE: 0.3125 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
•
SURFACE TREATMENT: CHROMIUM OVERALL
•
DISTANCE FROM SPHERICAL HEAD CENTERLINE TO HEAD END: 0.208 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.470 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
STYLE DESIGNATORBALL
OVERALL LENGTH1.380 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
NOMINAL THREAD SIZE0.3125 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
SURFACE TREATMENTCHROMIUM OVERALL
DISTANCE FROM SPHERICAL HEAD CENTERLINE TO HEAD END0.208 INCHES NOMINAL IN
THREAD CLASS2A LOCATION NOT OTHERWISE SPECIFIED A
THREAD QUANTITY PER INCH18 LOCATION NOT OTHERWISE SPECIFIED
SUBSTITUTES & CROSS-REFERENCES 3
A9007Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5307PL0805318Reference document
Same NSN cross-reference
Reference document — Informative reference only
9505-1Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 393835?
393835 is a RING,PISTON.
What parts can replace 393835?
There are 3 known substitutes for 393835: A9007, 5307PL0805318, 9505-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 393835?
393835 is cataloged in the U.S. Government catalog under NSN 5307-01-140-6594. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.