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A0581000USSW8Z — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

A0581000USSW8Z: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include special_features: ASTM F 436, TYPE 1 - CARBON STEEL, ASTM B 633, TYPE II, SC 4 FOR LAV D-KIT, end_item_identification: 2320-01-494-7606 AND 2355-010539-3639, part_name_assigned_by_controlling_agency: 1 INCH USS FLATWASHER GR NUMBER 8 ZINC YELLOW IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-588-0242, 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
A0581000USSW8Z
NSN: 5310-01-588-0242
FSC: 5310 — Nuts and Washers
CAGE: 7W108 — SUBURBAN BOLT & SUPPLY CO (USA)
SPECIFICATIONS
special_featuresASTM F 436, TYPE 1 - CARBON STEEL, ASTM B 633, TYPE II, SC 4 FOR LAV D-KIT
end_item_identification2320-01-494-7606 AND 2355-010539-3639
part_name_assigned_by_controlling_agency1 INCH USS FLATWASHER GR NUMBER 8 ZINC YELLOW IN
NSN5310-01-588-0242
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A0581000USSW8Z · 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESASTM F 436, TYPE 1 - CARBON STEEL, ASTM B 633, TYPE II, SC 4 FOR LAV D-KIT
PART NAME ASSIGNED BY CONTROLLING AGENCY1 INCH USS FLATWASHER GR NUMBER 8 ZINC YELLOW IN
END ITEM IDENTIFICATION2320-01-494-7606 AND 2355-010539-3639
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 1
B18.21.1Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 A0581000USSW8Z?
A0581000USSW8Z is a WASHER,FLAT.
What parts can replace A0581000USSW8Z?
There is 1 known substitute for A0581000USSW8Z: B18.21.1. Substitute compatibility should be verified for your specific system.
What is the NSN for A0581000USSW8Z?
A0581000USSW8Z is cataloged in the U.S. Government catalog under NSN 5310-01-588-0242. 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.