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7HB529 — WASHER,SEAL

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

7HB529: WASHER,SEAL.

The WASHER,SEAL is a the manufacturer industrial component. Key specifications include material: RUBBER OR STEEL SEALING ELEMENT, hole_diameter: 9.780 INCHES NOMINAL9.780 INCHES NOMINAL IN, outside_diameter: 16.900 INCHES NOMINAL16.900 INCHES NOMINAL IN, material_thickness: 1.930 INCHES NOMINAL1.930 INCHES NOMINAL IN, end_item_identification: 2320-01-465-21742320-01-465-2174. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-481-0860, 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
7HB529
NSN: 5310-01-481-0860
FSC: 5310 — Nuts and Washers
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialRUBBER OR STEEL SEALING ELEMENT
hole_diameter9.780 INCHES NOMINAL9.780 INCHES NOMINAL IN
outside_diameter16.900 INCHES NOMINAL16.900 INCHES NOMINAL IN
material_thickness1.930 INCHES NOMINAL1.930 INCHES NOMINAL IN
end_item_identification2320-01-465-21742320-01-465-2174
NSN5310-01-481-0860
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7HB529 · 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
•
OUTSIDE DIAMETER: 16.900 INCHES NOMINAL16.900 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 1.930 INCHES NOMINAL1.930 INCHES NOMINAL IN
•
MATERIAL: RUBBER OR STEEL SEALING ELEMENT
•
HOLE DIAMETER: 9.780 INCHES NOMINAL9.780 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER16.900 INCHES NOMINAL16.900 INCHES NOMINAL IN
MATERIAL THICKNESS1.930 INCHES NOMINAL1.930 INCHES NOMINAL IN
END ITEM IDENTIFICATION2320-01-465-21742320-01-465-2174
MATERIALRUBBER OR STEEL SEALING ELEMENT
HOLE DIAMETER9.780 INCHES NOMINAL9.780 INCHES NOMINAL IN
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
922570Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 7HB529?
7HB529 is a WASHER,SEAL.
What parts can replace 7HB529?
There is 1 known substitute for 7HB529: 922570. Substitute compatibility should be verified for your specific system.
What is the NSN for 7HB529?
7HB529 is cataloged in the U.S. Government catalog under NSN 5310-01-481-0860. 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.