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121543 — WASHER.CORRUGATED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

121543: WASHER.CORRUGATED.

The WASHER.CORRUGATED is a the manufacturer industrial component. Key specifications include special_features: USED ON ALL MODELS FOR HT230 OR N-HT230;4 REQUIRED PER SUSPENSION, end_item_identification: HT230 TOP MOUNT SUSPENSION SYSTEM, part_name_assigned_by_controlling_agency: BUSHING TUBE SPACER. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-163-9782, 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
121543
NSN: 5310-00-163-9782
NIINs: 001639782, 015772044
FSC: 5310 — Nuts and Washers
CAGE: 09205 — LOCKHEED MARTIN CORP ELECTRONICS AND MISSILES DIV (USA)
SPECIFICATIONS
special_featuresUSED ON ALL MODELS FOR HT230 OR N-HT230;4 REQUIRED PER SUSPENSION
end_item_identificationHT230 TOP MOUNT SUSPENSION SYSTEM
part_name_assigned_by_controlling_agencyBUSHING TUBE SPACER
NSN5310-00-163-9782
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 121543 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: BERYLLIUM COPPER QQ-C-533 TEMPER A OR TEMPER 1/4 HARD,0.250 INCH ID. 0.562 INCH OD. 0.004 INCH THK IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONBERYLLIUM COPPER QQ-C-533 TEMPER A OR TEMPER 1/4 HARD,0.250 INCH ID. 0.562 INCH OD. 0.004 INCH THK IN
SUBSTITUTES & CROSS-REFERENCES 1
121543-1Same NSN cross-reference
Washer.corrugated
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 121543?
121543 is a WASHER.CORRUGATED.
What parts can replace 121543?
There is 1 known substitute for 121543: 121543-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 121543?
121543 is cataloged in the U.S. Government catalog under NSN 5310-00-163-9782. 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.