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W988R — BOLT,RIBBED SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

W988R: BOLT,RIBBED SHOULDER.

The BOLT,RIBBED SHOULDER is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5306-01-157-6804, 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
W988R
NSN: 5306-01-157-6804
FSC: 5306 — Bolts
CAGE: 73972 — KELSEY-HAYES CO GUNITE DIV (USA)
SPECIFICATIONS
Part NumberW988R
NSN5306-01-157-6804
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: W988R · 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
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES 2
WP720RReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
5731538Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is W988R?
W988R is a BOLT,RIBBED SHOULDER.
What parts can replace W988R?
There are 2 known substitutes for W988R: WP720R, 5731538. Substitute compatibility should be verified for your specific system.
What is the NSN for W988R?
W988R is cataloged in the U.S. Government catalog under NSN 5306-01-157-6804. This indicates validated use in U.S. government and defense supply chains.
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