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A-8506793 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

A-8506793: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY R-405 OVERALL, nut_style: HEXAGONHEXAGON, nut_height: 0.509 INCHES MINIMUM AND 0.509 INCHES MINIMUM AND 0.553 INCHES MAXIMUM0.553 INCHES MAXIMUM IN, thread_class: 3B3B, thread_series: UNFUNF, thread_direction: RIGHT-HANDRIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-135-9505, 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
A-8506793
NSN: 5310-01-135-9505
FSC: 5310 — Nuts and Washers
CAGE: 27462 — GENERAL MOTORS CORP HARRISON RADIATOR DIV (USA)
SPECIFICATIONS
materialNICKEL ALLOY R-405 OVERALL
nut_styleHEXAGONHEXAGON
nut_height0.509 INCHES MINIMUM AND 0.509 INCHES MINIMUM AND 0.553 INCHES MAXIMUM0.553 INCHES MAXIMUM IN
thread_class3B3B
thread_seriesUNFUNF
thread_directionRIGHT-HANDRIGHT-HAND
width_across_flats0.969 INCHES MINIMUM AND 0.969 INCHES MINIMUM AND 1.000 INCHES MAXIMUM1.000 INCHES MAXIMUM IN
nominal_thread_size0.625 INCHES0.625 INCHES IN
bearing_surface_typeWASHER FACEDWASHER FACED
thread_quantity_per_inch1818
material_document_and_classificationQQ-N-281,CLASS B FED SPEC SINGLE MATERIAL RESPONSE OVERALLQQ-N-281,CLASS B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-135-9505
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A-8506793 · 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
•
WIDTH ACROSS FLATS: 0.969 INCHES MINIMUM AND 0.969 INCHES MINIMUM AND 1.000 INCHES MAXIMUM1.000 INCHES MAXIMUM IN
•
THREAD SERIES: UNFUNF
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281,CLASS B FED SPEC SINGLE MATERIAL RESPONSE OVERALLQQ-N-281,CLASS B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HANDRIGHT-HAND
•
NOMINAL THREAD SIZE: 0.625 INCHES0.625 INCHES IN
•
NUT HEIGHT: 0.509 INCHES MINIMUM AND 0.509 INCHES MINIMUM AND 0.553 INCHES MAXIMUM0.553 INCHES MAXIMUM IN
•
NUT STYLE: HEXAGONHEXAGON
•
THREAD CLASS: 3B3B
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.969 INCHES MINIMUM AND 0.969 INCHES MINIMUM AND 1.000 INCHES MAXIMUM1.000 INCHES MAXIMUM IN
THREAD SERIESUNFUNF
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CLASS B FED SPEC SINGLE MATERIAL RESPONSE OVERALLQQ-N-281,CLASS B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HANDRIGHT-HAND
NOMINAL THREAD SIZE0.625 INCHES0.625 INCHES IN
NUT HEIGHT0.509 INCHES MINIMUM AND 0.509 INCHES MINIMUM AND 0.553 INCHES MAXIMUM0.553 INCHES MAXIMUM IN
NUT STYLEHEXAGONHEXAGON
THREAD CLASS3B3B
THREAD QUANTITY PER INCH1818
MATERIALNICKEL ALLOY R-405 OVERALL
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
J-8541540 PIECE 6Reference 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 A-8506793?
A-8506793 is a NUT,PLAIN,HEXAGON.
What parts can replace A-8506793?
There is 1 known substitute for A-8506793: J-8541540 PIECE 6. Substitute compatibility should be verified for your specific system.
What is the NSN for A-8506793?
A-8506793 is cataloged in the U.S. Government catalog under NSN 5310-01-135-9505. This indicates validated use in U.S. government and defense supply chains.
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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.