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D2-8491PC457 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

D2-8491PC457: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.956 INCHES MINIMUM AND 1.012 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC), thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-017-3690, 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
D2-8491PC457
NSN: 5310-00-017-3690
FSC: 5310 — Nuts and Washers
CAGE: 73057 — USM CORP SUB OF EMHART INDUSTRIES INC FARREL CO DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.956 INCHES MINIMUM AND 1.012 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
thread_directionRIGHT-HAND
width_across_flats1.5750 INCHES MINIMUM AND 1.6250 INCHES MAXIMUM IN
nominal_thread_size1.000 INCHES IN
bearing_surface_typeWASHER FACED
thread_quantity_per_inch8
NSN5310-00-017-3690
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: D2-8491PC457 · 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: 1.5750 INCHES MINIMUM AND 1.6250 INCHES MAXIMUM IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.000 INCHES IN
•
NUT HEIGHT: 0.956 INCHES MINIMUM AND 1.012 INCHES MAXIMUM IN
•
NUT STYLE: HEXAGON
•
THREAD CLASS: 3B
•
THREAD QUANTITY PER INCH: 8
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.5750 INCHES MINIMUM AND 1.6250 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.000 INCHES IN
NUT HEIGHT0.956 INCHES MINIMUM AND 1.012 INCHES MAXIMUM IN
NUT STYLEHEXAGON
THREAD CLASS3B
THREAD QUANTITY PER INCH8
MATERIALSTEEL OVERALL
BEARING SURFACE TYPEWASHER FACED
SUBSTITUTES & CROSS-REFERENCES 8
911032Reference document
Same NSN cross-reference
Reference document — Secondary reference
E165-348-2PC42Reference document
Same NSN cross-reference
Reference document — Secondary reference
173690Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
E165-158-1PC42Reference document
Same NSN cross-reference
Reference document — Secondary reference
E102-807-3PCB27Reference document
Same NSN cross-reference
Reference document — Secondary reference
E165-168-2PC89Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is D2-8491PC457?
D2-8491PC457 is a NUT,PLAIN,HEXAGON.
What parts can replace D2-8491PC457?
There are 8 known substitutes for D2-8491PC457: 911032, E165-348-2PC42, 173690 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D2-8491PC457?
D2-8491PC457 is cataloged in the U.S. Government catalog under NSN 5310-00-017-3690. 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.