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4HB537 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

4HB537: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING NUT, nut_style: HEXAGON, nut_height: 0.969 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN, thread_series: UNF, thread_direction: RIGHT-HAND, width_across_flats: 0.850 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-485-2086, 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
4HB537
NSN: 5310-01-485-2086
FSC: 5310 — Nuts and Washers
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING NUT
nut_styleHEXAGON
nut_height0.969 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
thread_seriesUNF
thread_directionRIGHT-HAND
width_across_flats0.850 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
nominal_thread_size0.500 INCHES IN
end_item_identification2320-01-097-0249,HEMTT
thread_quantity_per_inch20
NSN5310-01-485-2086
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 4HB537 · 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: 0.850 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
•
THREAD SERIES: UNF
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.500 INCHES IN
•
NUT HEIGHT: 0.969 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
•
NUT STYLE: HEXAGON
•
THREAD QUANTITY PER INCH: 20
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.850 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
THREAD SERIESUNF
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.500 INCHES IN
NUT HEIGHT0.969 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
NUT STYLEHEXAGON
END ITEM IDENTIFICATION2320-01-097-0249,HEMTT
THREAD QUANTITY PER INCH20
MATERIALSTEEL CORROSION RESISTING NUT
SUBSTITUTES & CROSS-REFERENCES 1
46398-5Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4HB537?
4HB537 is a NUT,PLAIN,HEXAGON.
What parts can replace 4HB537?
There is 1 known substitute for 4HB537: 46398-5. Substitute compatibility should be verified for your specific system.
What is the NSN for 4HB537?
4HB537 is cataloged in the U.S. Government catalog under NSN 5310-01-485-2086. 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.