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98948A740 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

98948A740: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.625 INCHES NOMINAL IN, thread_series: UNS, hardness_rating: 75.0 ROCKWELL B NOMINAL, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-625-3397, 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
98948A740
NSN: 5310-01-625-3397
FSC: 5310 — Nuts and Washers
CAGE: 07BY4 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.625 INCHES NOMINAL IN
thread_seriesUNS
hardness_rating75.0 ROCKWELL B NOMINAL
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
width_across_flats0.625 INCHES NOMINAL IN
nominal_thread_size0.625 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch8
inside_width_across_flats1.0625 INCHES NOMINAL IN
NSN5310-01-625-3397
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 98948A740 · 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: 0.625 INCHES NOMINAL IN
•
THREAD SERIES: UNS
•
HARDNESS RATING: 75.0 ROCKWELL B NOMINAL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.625 INCHES IN
•
NUT HEIGHT: 0.625 INCHES NOMINAL IN
•
SURFACE TREATMENT: ZINC OVERALL
•
INSIDE WIDTH ACROSS FLATS: 1.0625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.625 INCHES NOMINAL IN
THREAD SERIESUNS
HARDNESS RATING75.0 ROCKWELL B NOMINAL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.625 INCHES IN
NUT HEIGHT0.625 INCHES NOMINAL IN
SURFACE TREATMENTZINC OVERALL
INSIDE WIDTH ACROSS FLATS1.0625 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYNUT
NUT STYLEHEXAGON
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

No substitute or cross-reference records for this part.

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 98948A740?
98948A740 is a NUT,PLAIN,HEXAGON.
What is the NSN for 98948A740?
98948A740 is cataloged in the U.S. Government catalog under NSN 5310-01-625-3397. 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.