PartsTable
Technical Data Sheet
Download PDF

88-20556-11 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

88-20556-11: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_item_identification: END ITEM NSN: 6115-01-296-1463, part_name_assigned_by_controlling_agency: DRAWING NAME: WASHER, LOCK-SPRING, HELICAL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-532-0343, 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
88-20556-11
NSN: 5310-01-532-0343
FSC: 5310 — Nuts and Washers
CAGE: 30554 — DEPARTMENT OF DEFENSE PROJECT MANAGER-MOBILE ELECTRIC POWER (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_item_identificationEND ITEM NSN: 6115-01-296-1463
part_name_assigned_by_controlling_agencyDRAWING NAME: WASHER, LOCK-SPRING, HELICAL
NSN5310-01-532-0343
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 88-20556-11 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
PART NAME ASSIGNED BY CONTROLLING AGENCYDRAWING NAME: WASHER, LOCK-SPRING, HELICAL
END ITEM IDENTIFICATIONEND ITEM NSN: 6115-01-296-1463
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
88-20556Reference 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
Ready to buy 88-20556-11?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 88-20556-11?
88-20556-11 is a WASHER,LOCK.
What parts can replace 88-20556-11?
There is 1 known substitute for 88-20556-11: 88-20556. Substitute compatibility should be verified for your specific system.
What is the NSN for 88-20556-11?
88-20556-11 is cataloged in the U.S. Government catalog under NSN 5310-01-532-0343. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 88-20556-11

✓ 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.