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9M188-68 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

9M188-68: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL, ring_style: SPIRAL, usage_design: EXTERNAL, inside_diameter: 0.620 INCHES NOMINAL IN, major_thickness: 0.035 INCHES NOMINAL IN, strength_rating: ERR-060. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-496-6987, 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
9M188-68
NSN: 5325-01-496-6987
FSC: 5325 — Fastening Devices
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL
ring_styleSPIRAL
usage_designEXTERNAL
inside_diameter0.620 INCHES NOMINAL IN
major_thickness0.035 INCHES NOMINAL IN
strength_ratingERR-060
outside_diameter0.730 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
end_item_identificationAIRCRAFT, EAGLE F-15
cross-sectional_shape_styleDOUBLE OVAL
NSN5325-01-496-6987
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 9M188-68 · 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
•
USAGE DESIGN: EXTERNAL
•
STRENGTH RATING: ERR-060
•
CROSS-SECTIONAL SHAPE STYLE: DOUBLE OVAL
•
OUTSIDE DIAMETER: 0.730 INCHES NOMINAL IN
•
MAJOR THICKNESS: 0.035 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.620 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: SPIRAL
TECHNICAL CHARACTERISTICS
USAGE DESIGNEXTERNAL
STRENGTH RATINGERR-060
CROSS-SECTIONAL SHAPE STYLEDOUBLE OVAL
OUTSIDE DIAMETER0.730 INCHES NOMINAL IN
MAJOR THICKNESS0.035 INCHES NOMINAL IN
INSIDE DIAMETER0.620 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLESPIRAL
END ITEM IDENTIFICATIONAIRCRAFT, EAGLE F-15
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 1
9M188Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 9M188-68?
9M188-68 is a RING,RETAINING.
What parts can replace 9M188-68?
There is 1 known substitute for 9M188-68: 9M188. Substitute compatibility should be verified for your specific system.
What is the NSN for 9M188-68?
9M188-68 is cataloged in the U.S. Government catalog under NSN 5325-01-496-6987. 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.